diff --git a/adapters/bidtheatre/bidtheatre.go b/adapters/bidtheatre/bidtheatre.go
new file mode 100644
index 00000000000..8d3b149c7ef
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatre.go
@@ -0,0 +1,97 @@
+package bidtheatre
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/adapters"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/errortypes"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"github.com/prebid/prebid-server/v3/util/jsonutil"
+)
+
+type adapter struct {
+	endpoint string
+}
+
+// Builder builds a new instance of the Bidtheatre adapter for the given bidder with the given config.
+func Builder(bidderName openrtb_ext.BidderName, config config.Adapter, server config.Server) (adapters.Bidder, error) {
+	bidder := &adapter{
+		endpoint: config.Endpoint,
+	}
+
+	return bidder, nil
+}
+
+func (a *adapter) MakeRequests(request *openrtb2.BidRequest, requestInfo *adapters.ExtraRequestInfo) ([]*adapters.RequestData, []error) {
+	requestJSON, err := jsonutil.Marshal(request)
+	if err != nil {
+		return nil, []error{err}
+	}
+
+	requestData := &adapters.RequestData{
+		Method: "POST",
+		Uri:    a.endpoint,
+		Body:   requestJSON,
+		ImpIDs: openrtb_ext.GetImpIDs(request.Imp),
+	}
+
+	return []*adapters.RequestData{requestData}, nil
+}
+
+func getMediaTypeForBid(bid openrtb2.Bid) (openrtb_ext.BidType, error) {
+	var bidExt openrtb_ext.ExtBid
+	if err := jsonutil.Unmarshal(bid.Ext, &bidExt); err == nil && bidExt.Prebid != nil {
+		return openrtb_ext.ParseBidType(string(bidExt.Prebid.Type))
+	}
+
+	return "", &errortypes.BadServerResponse{
+		Message: fmt.Sprintf("Failed to parse impression \"%s\" mediatype", bid.ImpID),
+	}
+}
+
+func (a *adapter) MakeBids(request *openrtb2.BidRequest, requestData *adapters.RequestData, responseData *adapters.ResponseData) (*adapters.BidderResponse, []error) {
+	if adapters.IsResponseStatusCodeNoContent(responseData) {
+		return nil, nil
+	}
+
+	if err := adapters.CheckResponseStatusCodeForErrors(responseData); err != nil {
+		return nil, []error{err}
+	}
+
+	var response openrtb2.BidResponse
+	if err := jsonutil.Unmarshal(responseData.Body, &response); err != nil {
+		return nil, []error{err}
+	}
+
+	bidResponse := adapters.NewBidderResponseWithBidsCapacity(len(request.Imp))
+	bidResponse.Currency = response.Cur
+	var errors []error
+	for _, seatBid := range response.SeatBid {
+		for i := range seatBid.Bid {
+			resolveMacros(&seatBid.Bid[i])
+			bidType, err := getMediaTypeForBid(seatBid.Bid[i])
+			if err != nil {
+				errors = append(errors, err)
+				continue
+			}
+			bidResponse.Bids = append(bidResponse.Bids, &adapters.TypedBid{
+				Bid:     &seatBid.Bid[i],
+				BidType: bidType,
+			})
+		}
+	}
+	return bidResponse, errors
+}
+
+func resolveMacros(bid *openrtb2.Bid) {
+	if bid == nil {
+		return
+	}
+	price := strconv.FormatFloat(bid.Price, 'f', -1, 64)
+	bid.NURL = strings.Replace(bid.NURL, "${AUCTION_PRICE}", price, -1)
+	bid.AdM = strings.Replace(bid.AdM, "${AUCTION_PRICE}", price, -1)
+}
diff --git a/adapters/bidtheatre/bidtheatre_test.go b/adapters/bidtheatre/bidtheatre_test.go
new file mode 100644
index 00000000000..8a4daf5fbe6
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatre_test.go
@@ -0,0 +1,90 @@
+package bidtheatre
+
+import (
+	"github.com/prebid/openrtb/v20/openrtb2"
+	"github.com/prebid/prebid-server/v3/adapters/adapterstest"
+	"github.com/prebid/prebid-server/v3/config"
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+	"strings"
+	"testing"
+)
+
+func TestJsonSamples(t *testing.T) {
+	bidder, buildErr := Builder(openrtb_ext.BidderBidtheatre, config.Adapter{
+		Endpoint: "http://any.url"},
+		config.Server{ExternalUrl: "http://hosturl.com", GvlID: 1, DataCenter: "2"})
+
+	if buildErr != nil {
+		t.Fatalf("Builder returned unexpected error %v", buildErr)
+	}
+
+	adapterstest.RunJSONBidderTest(t, "bidtheatretest", bidder)
+}
+
+func TestGetBidTypes(t *testing.T) {
+	mockBid := openrtb2.Bid{
+		ID:     "mock-bid-id",
+		ImpID:  "mock-imp-id",
+		Price:  1.23,
+		AdID:   "mock-ad-id",
+		CrID:   "mock-cr-id",
+		DealID: "mock-deal-id",
+		W:      980,
+		H:      240,
+		Ext:    []byte(`{"prebid": {"type": "banner"}}`),
+		BURL:   "https://example.com/win-notify",
+		Cat:    []string{"IAB1"},
+	}
+
+	actualBidTypeValue, _ := getMediaTypeForBid(mockBid)
+
+	if actualBidTypeValue != openrtb_ext.BidTypeBanner {
+		t.Errorf("Expected Bid Type value was: %v, actual value is: %v", openrtb_ext.BidTypeBanner, actualBidTypeValue)
+	}
+
+	mockBid.Ext = []byte(`{"prebid": {"type": "video"}}`)
+
+	actualBidTypeValue, _ = getMediaTypeForBid(mockBid)
+
+	if actualBidTypeValue != openrtb_ext.BidTypeVideo {
+		t.Errorf("Expected Bid Type value was: %v, actual value is: %v", openrtb_ext.BidTypeVideo, actualBidTypeValue)
+	}
+
+}
+
+func TestReplaceMacros(t *testing.T) {
+	mockBid := openrtb2.Bid{
+		ID:     "mock-bid-id",
+		ImpID:  "mock-imp-id",
+		Price:  1.23,
+		AdID:   "mock-ad-id",
+		CrID:   "mock-cr-id",
+		DealID: "mock-deal-id",
+		W:      980,
+		H:      240,
+		Ext:    []byte(`{"prebid": {"type": "banner"}}`),
+		BURL:   "https://example.com/win-notify",
+		Cat:    []string{"IAB1"},
+		AdM:    "<script type=\"text/javascript\">\n    var uri = 'https://adsby.bidtheatre.com/imp?z=27025&a=1915538&so=1&ex=36&eb=3672319&xs=940698616&wp=${AUCTION_PRICE}&su=unknown&es=prebid.org&tag=unspec_980_300&kuid=eab9340e-8731-4027-9ada-57b554c75501&dealId=&mp=&ma=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%3D%3D&usersync=1&cd=0&impId=x36_asx-b-s2_7817519657103365207&gdpr=0&gdpr_consent=&cb0=&rnd=' + new String (Math.random()).substring (2, 11);\n    document.write('<sc'+'ript type=\"text/javascript\" src=\"'+uri+'\" charset=\"ISO-8859-1\"></sc'+'ript>');\n</script>",
+		NURL:   "https://adsby.bidtheatre.com/video?z=27025;a=1922926;ex=36;es=prebid.org;eb=3672319;xs=940698616;so=1;tag=unspec_640_360;kuid=1d10dda6-740d-4386-94a0-7042b2ad2a66;wp=${AUCTION_PRICE};su=unknown;iab=vast2;dealId=;ma=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%3D;cd=0;cb0=;impId=x36_asx-b-s1_2569924863266808936;gdpr=0;gdpr_consent=",
+	}
+
+	resolveMacros(&mockBid)
+
+	if !strings.Contains(mockBid.AdM, "&wp=1.23&") {
+		t.Errorf("AdM ${AUCTION_PRICE} not correctly replaced")
+	}
+
+	if strings.Contains(mockBid.AdM, "${AUCTION_PRICE}") {
+		t.Errorf("AdM ${AUCTION_PRICE} not correctly replaced")
+	}
+
+	if !strings.Contains(mockBid.NURL, ";wp=1.23;") {
+		t.Errorf("NURL ${AUCTION_PRICE} not correctly replaced")
+	}
+
+	if strings.Contains(mockBid.NURL, "${AUCTION_PRICE}") {
+		t.Errorf("NURL ${AUCTION_PRICE} not correctly replaced")
+	}
+
+}
diff --git a/adapters/bidtheatre/bidtheatretest/exemplary/simple-banner.json b/adapters/bidtheatre/bidtheatretest/exemplary/simple-banner.json
new file mode 100644
index 00000000000..eae33a05c87
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/exemplary/simple-banner.json
@@ -0,0 +1,128 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 980,
+              "h": 240
+            },
+            {
+              "w": 980,
+              "h": 300
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 980,
+                    "h": 240
+                  },
+                  {
+                    "w": 980,
+                    "h": 300
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "5",
+              "bid": [
+                {
+                  "id": "test-imp-id",
+                  "impid": "test-imp-id",
+                  "price": 5.08712911605835,
+                  "adm": "<script type=\"text\/javascript\">\n    var uri = 'https:\/\/adsby.bidtheatre.com\/imp?z=27025&a=1915538&so=1&ex=36&eb=3672319&xs=940698616&wp=${AUCTION_PRICE}&su=unknown&es=prebid.org&tag=unspec_980_300&kuid=eab9340e-8731-4027-9ada-57b554c75501&dealId=&mp=&ma=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%3D%3D&usersync=1&cd=0&impId=x36_asx-b-s2_7817519657103365207&gdpr=0&gdpr_consent=&cb0=&rnd=' + new String (Math.random()).substring (2, 11);\n    document.write('<sc'+'ript type=\"text\/javascript\" src=\"'+uri+'\" charset=\"ISO-8859-1\"><\/sc'+'ript>');\n<\/script>",
+                  "adid": "1915538",
+                  "cid": "c154375",
+                  "crid": "1915538",
+                  "w": 980,
+                  "h": 240,
+                  "ext": {
+                    "prebid": {
+                      "type": "banner"
+                    }
+                  }
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "bids":[
+        {
+          "currency": "USD",
+          "bid":  {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 5.08712911605835,
+            "adm": "<script type=\"text\/javascript\">\n    var uri = 'https:\/\/adsby.bidtheatre.com\/imp?z=27025&a=1915538&so=1&ex=36&eb=3672319&xs=940698616&wp=5.08712911605835&su=unknown&es=prebid.org&tag=unspec_980_300&kuid=eab9340e-8731-4027-9ada-57b554c75501&dealId=&mp=&ma=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%3D%3D&usersync=1&cd=0&impId=x36_asx-b-s2_7817519657103365207&gdpr=0&gdpr_consent=&cb0=&rnd=' + new String (Math.random()).substring (2, 11);\n    document.write('<sc'+'ript type=\"text\/javascript\" src=\"'+uri+'\" charset=\"ISO-8859-1\"><\/sc'+'ript>');\n<\/script>",
+            "adid": "1915538",
+            "cid": "c154375",
+            "crid": "1915538",
+            "w": 980,
+            "h": 240,
+            "ext": {
+              "prebid": {
+                "type": "banner"
+              }
+            }
+          },
+          "type": "banner"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/bidtheatre/bidtheatretest/exemplary/simple-video.json b/adapters/bidtheatre/bidtheatretest/exemplary/simple-video.json
new file mode 100644
index 00000000000..43af74b8500
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/exemplary/simple-video.json
@@ -0,0 +1,120 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "video": {
+          "mimes": ["video/mp4", "video/webm"],
+          "minduration": 5,
+          "maxduration": 30,
+          "protocols": [2, 3, 5, 6],
+          "w": 640,
+          "h": 360
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "video": {
+                "mimes": ["video/mp4", "video/webm"],
+                "minduration": 5,
+                "maxduration": 30,
+                "protocols": [2, 3, 5, 6],
+                "w": 640,
+                "h": 360
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "5",
+              "bid": [
+                {
+                  "id": "test-imp-id",
+                  "impid": "test-imp-id",
+                  "price": 5.08712911605835,
+                  "nurl": "https:\/\/adsby.bidtheatre.com\/video?z=27025;a=1922926;ex=36;es=prebid.org;eb=3672319;xs=940698616;so=1;tag=unspec_640_360;kuid=1d10dda6-740d-4386-94a0-7042b2ad2a66;wp=${AUCTION_PRICE};su=unknown;iab=vast2;dealId=;ma=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%3D;cd=0;cb0=;impId=x36_asx-b-s1_2569924863266808936;gdpr=0;gdpr_consent=",
+                  "adid": "1915538",
+                  "cid": "c154375",
+                  "crid": "1915538",
+                  "w": 640,
+                  "h": 360,
+                  "ext": {
+                    "prebid": {
+                      "type": "video"
+                    }
+                  }
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "bids":[
+        {
+          "currency": "USD",
+          "bid":  {
+            "id": "test-imp-id",
+            "impid": "test-imp-id",
+            "price": 5.08712911605835,
+            "nurl": "https:\/\/adsby.bidtheatre.com\/video?z=27025;a=1922926;ex=36;es=prebid.org;eb=3672319;xs=940698616;so=1;tag=unspec_640_360;kuid=1d10dda6-740d-4386-94a0-7042b2ad2a66;wp=5.08712911605835;su=unknown;iab=vast2;dealId=;ma=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%3D;cd=0;cb0=;impId=x36_asx-b-s1_2569924863266808936;gdpr=0;gdpr_consent=",
+            "adid": "1915538",
+            "cid": "c154375",
+            "crid": "1915538",
+            "w": 640,
+            "h": 360,
+            "ext": {
+              "prebid": {
+                "type": "video"
+              }
+            }
+          },
+          "type": "video"
+        }
+      ]
+    }
+  ]
+}
diff --git a/adapters/bidtheatre/bidtheatretest/supplemental/bad-bid-type.json b/adapters/bidtheatre/bidtheatretest/supplemental/bad-bid-type.json
new file mode 100644
index 00000000000..c1aa7e973fd
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/supplemental/bad-bid-type.json
@@ -0,0 +1,112 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 980,
+              "h": 240
+            },
+            {
+              "w": 980,
+              "h": 300
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 980,
+                    "h": 240
+                  },
+                  {
+                    "w": 980,
+                    "h": 300
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": {
+          "cur": "USD",
+          "seatbid": [
+            {
+              "seat": "5",
+              "bid": [
+                {
+                  "id": "test-imp-id",
+                  "impid": "test-imp-id",
+                  "price": 5.08712911605835,
+                  "adm": "<script type=\"text\/javascript\">\n    var uri = 'https:\/\/adsby.bidtheatre.com\/imp?z=27025&a=1915538&so=1&ex=36&eb=3672319&xs=940698616&wp=${AUCTION_PRICE}&su=unknown&es=prebid.org&tag=unspec_980_300&kuid=eab9340e-8731-4027-9ada-57b554c75501&dealId=&mp=&ma=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%3D%3D&usersync=1&cd=0&impId=x36_asx-b-s2_7817519657103365207&gdpr=0&gdpr_consent=&cb0=&rnd=' + new String (Math.random()).substring (2, 11);\n    document.write('<sc'+'ript type=\"text\/javascript\" src=\"'+uri+'\" charset=\"ISO-8859-1\"><\/sc'+'ript>');\n<\/script>",
+                  "adid": "1915538",
+                  "cid": "c154375",
+                  "crid": "1915538",
+                  "w": 980,
+                  "h": 240,
+                  "ext": {
+                    "prebid": ""
+                  }
+                }
+              ]
+            }
+          ]
+        }
+      }
+    }
+  ],
+  "expectedBidResponses": [
+    {
+      "currency": "USD",
+      "bids": []
+    }
+  ],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Failed to parse impression \"test-imp-id\" mediatype",
+      "comparison": "literal"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/adapters/bidtheatre/bidtheatretest/supplemental/bad-response-body.json b/adapters/bidtheatre/bidtheatretest/supplemental/bad-response-body.json
new file mode 100644
index 00000000000..0564c9fdc1e
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/supplemental/bad-response-body.json
@@ -0,0 +1,83 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 980,
+              "h": 240
+            },
+            {
+              "w": 980,
+              "h": 300
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 980,
+                    "h": 240
+                  },
+                  {
+                    "w": 980,
+                    "h": 300
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 200,
+        "body": ""
+      }
+    }
+  ],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "expect { or n, but found \"",
+      "comparison": "literal"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/adapters/bidtheatre/bidtheatretest/supplemental/status-204.json b/adapters/bidtheatre/bidtheatretest/supplemental/status-204.json
new file mode 100644
index 00000000000..15c4fff82c4
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/supplemental/status-204.json
@@ -0,0 +1,78 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 980,
+              "h": 240
+            },
+            {
+              "w": 980,
+              "h": 300
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 980,
+                    "h": 240
+                  },
+                  {
+                    "w": 980,
+                    "h": 300
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 204,
+        "body": {}
+      }
+    }
+  ],
+  "expectedBidResponses": []
+}
\ No newline at end of file
diff --git a/adapters/bidtheatre/bidtheatretest/supplemental/status-400.json b/adapters/bidtheatre/bidtheatretest/supplemental/status-400.json
new file mode 100644
index 00000000000..d026b8302c4
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/supplemental/status-400.json
@@ -0,0 +1,83 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 980,
+              "h": 240
+            },
+            {
+              "w": 980,
+              "h": 300
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 980,
+                    "h": 240
+                  },
+                  {
+                    "w": 980,
+                    "h": 300
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 400,
+        "body": {}
+      }
+    }
+  ],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unexpected status code: 400. Run with request.debug = 1 for more info",
+      "comparison": "literal"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/adapters/bidtheatre/bidtheatretest/supplemental/status-500.json b/adapters/bidtheatre/bidtheatretest/supplemental/status-500.json
new file mode 100644
index 00000000000..0496a2b8a25
--- /dev/null
+++ b/adapters/bidtheatre/bidtheatretest/supplemental/status-500.json
@@ -0,0 +1,83 @@
+{
+  "mockBidRequest": {
+    "id": "test-request-id",
+    "imp": [
+      {
+        "id": "test-imp-id",
+        "banner": {
+          "format": [
+            {
+              "w": 980,
+              "h": 240
+            },
+            {
+              "w": 980,
+              "h": 300
+            }
+          ]
+        },
+        "ext": {
+          "bidder": {
+            "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+          }
+        }
+      }
+    ],
+    "site": {
+      "page": "prebid.org"
+    },
+    "device": {
+      "ip": "81.227.82.28"
+    }
+  },
+
+  "httpCalls": [
+    {
+      "expectedRequest": {
+        "uri": "http://any.url",
+        "body": {
+          "id": "test-request-id",
+          "imp": [
+            {
+              "id": "test-imp-id",
+              "banner": {
+                "format": [
+                  {
+                    "w": 980,
+                    "h": 240
+                  },
+                  {
+                    "w": 980,
+                    "h": 300
+                  }
+                ]
+              },
+              "ext": {
+                "bidder": {
+                  "publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"
+                }
+              }
+            }
+          ],
+          "site": {
+            "page": "prebid.org"
+          },
+          "device": {
+            "ip": "81.227.82.28"
+          }
+        },
+        "impIDs":["test-imp-id"]
+      },
+      "mockResponse": {
+        "status": 500,
+        "body": {}
+      }
+    }
+  ],
+  "expectedMakeBidsErrors": [
+    {
+      "value": "Unexpected status code: 500. Run with request.debug = 1 for more info",
+      "comparison": "literal"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/adapters/bidtheatre/params_test.go b/adapters/bidtheatre/params_test.go
new file mode 100644
index 00000000000..64870afcba2
--- /dev/null
+++ b/adapters/bidtheatre/params_test.go
@@ -0,0 +1,45 @@
+package bidtheatre
+
+import (
+	"encoding/json"
+	"testing"
+
+	"github.com/prebid/prebid-server/v3/openrtb_ext"
+)
+
+func TestValidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json schema. %v", err)
+	}
+
+	for _, p := range validParams {
+		if err := validator.Validate(openrtb_ext.BidderBidtheatre, json.RawMessage(p)); err != nil {
+			t.Errorf("Schema rejected valid params: %s", p)
+		}
+	}
+}
+
+func TestInvalidParams(t *testing.T) {
+	validator, err := openrtb_ext.NewBidderParamsValidator("../../static/bidder-params")
+	if err != nil {
+		t.Fatalf("Failed to fetch the json schema. %v", err)
+	}
+
+	for _, p := range invalidParams {
+		if err := validator.Validate(openrtb_ext.BidderBidtheatre, json.RawMessage(p)); err == nil {
+			t.Errorf("Schema allowed invalid params: %s", p)
+		}
+	}
+}
+
+var validParams = []string{
+	`{"publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786ee"}`,
+}
+
+var invalidParams = []string{
+	`{"publisherId": 42}`,
+	`{"publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786e"}`,
+	`{"publisherId": "73b20b3a-12a0-4869-b54e-8d42b55786eee"}`,
+	`{}`,
+}
diff --git a/exchange/adapter_builders.go b/exchange/adapter_builders.go
index 97a03dde2a5..7c09811b4f3 100755
--- a/exchange/adapter_builders.go
+++ b/exchange/adapter_builders.go
@@ -56,6 +56,7 @@ import (
 	"github.com/prebid/prebid-server/v3/adapters/bidmyadz"
 	"github.com/prebid/prebid-server/v3/adapters/bidscube"
 	"github.com/prebid/prebid-server/v3/adapters/bidstack"
+	"github.com/prebid/prebid-server/v3/adapters/bidtheatre"
 	"github.com/prebid/prebid-server/v3/adapters/bigoad"
 	"github.com/prebid/prebid-server/v3/adapters/blasto"
 	"github.com/prebid/prebid-server/v3/adapters/bliink"
@@ -286,6 +287,7 @@ func newAdapterBuilders() map[openrtb_ext.BidderName]adapters.Builder {
 		openrtb_ext.BidderBidmyadz:          bidmyadz.Builder,
 		openrtb_ext.BidderBidsCube:          bidscube.Builder,
 		openrtb_ext.BidderBidstack:          bidstack.Builder,
+		openrtb_ext.BidderBidtheatre:        bidtheatre.Builder,
 		openrtb_ext.BidderBigoAd:            bigoad.Builder,
 		openrtb_ext.BidderBlasto:            blasto.Builder,
 		openrtb_ext.BidderBliink:            bliink.Builder,
diff --git a/openrtb_ext/bidders.go b/openrtb_ext/bidders.go
index 9e86ad86ec1..9a8f9dac802 100644
--- a/openrtb_ext/bidders.go
+++ b/openrtb_ext/bidders.go
@@ -72,6 +72,7 @@ var coreBidderNames []BidderName = []BidderName{
 	BidderBidmyadz,
 	BidderBidsCube,
 	BidderBidstack,
+	BidderBidtheatre,
 	BidderBigoAd,
 	BidderBlasto,
 	BidderBliink,
@@ -402,6 +403,7 @@ const (
 	BidderBidmyadz          BidderName = "bidmyadz"
 	BidderBidsCube          BidderName = "bidscube"
 	BidderBidstack          BidderName = "bidstack"
+	BidderBidtheatre        BidderName = "bidtheatre"
 	BidderBigoAd            BidderName = "bigoad"
 	BidderBlasto            BidderName = "blasto"
 	BidderBliink            BidderName = "bliink"
diff --git a/openrtb_ext/imp_bidtheatre.go b/openrtb_ext/imp_bidtheatre.go
new file mode 100644
index 00000000000..97e9d5c6e03
--- /dev/null
+++ b/openrtb_ext/imp_bidtheatre.go
@@ -0,0 +1,5 @@
+package openrtb_ext
+
+type ImpExtBidtheatre struct {
+	PublisherID string `json:"publisherId"`
+}
diff --git a/static/bidder-info/bidtheatre.yaml b/static/bidder-info/bidtheatre.yaml
new file mode 100644
index 00000000000..a0f0cc2d213
--- /dev/null
+++ b/static/bidder-info/bidtheatre.yaml
@@ -0,0 +1,20 @@
+endpoint: "https://prebidjs-bids.bidtheatre.net/prebidjsbid"
+geoscope:
+  - EEA
+maintainer:
+  email: operations@bidtheatre.com
+gvlVendorID: 30
+modifyingVastXmlAllowed: true
+capabilities:
+  app:
+    mediaTypes:
+      - banner
+      - video
+  site:
+    mediaTypes:
+      - banner
+      - video
+userSync:
+  # bidtheatre supports user syncing, but requires configuration. Please contact operations@bidtheatre.com.
+  supports:
+    - redirect
diff --git a/static/bidder-params/bidtheatre.json b/static/bidder-params/bidtheatre.json
new file mode 100644
index 00000000000..ad45cf485b2
--- /dev/null
+++ b/static/bidder-params/bidtheatre.json
@@ -0,0 +1,14 @@
+{
+  "$schema": "http://json-schema.org/draft-04/schema#",
+  "title": "Bidtheatre Adapter Params",
+  "description": "A schema which validates params accepted by the Bidtheatre adapter",
+  "type": "object",
+  "properties": {
+    "publisherId": {
+      "type": "string",
+      "description": "Publisher ID",
+      "format": "uuid"
+    }
+  },
+  "required": ["publisherId"]
+}
\ No newline at end of file