diff --git a/.gitmodules b/.gitmodules
index e383c99b6..46d71e31a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "Packages/Scripting"]
 	path = Packages/Scripting
 	url = https://github.com/MIRTK/Scripting.git
+[submodule "Packages/Viewer"]
+	path = Packages/Viewer
+	url = https://github.com/MIRTK/Viewer.git
diff --git a/BasisProject.cmake b/BasisProject.cmake
index 3921320db..6173d0420 100644
--- a/BasisProject.cmake
+++ b/BasisProject.cmake
@@ -75,6 +75,7 @@ basis_project (
     Packages/Mapping
     Packages/DrawEM
     Packages/Scripting
+    Packages/Viewer
 
   # --------------------------------------------------------------------------
   # list of modules enabled by default
@@ -93,6 +94,7 @@ basis_project (
     Mapping
     DrawEM
     Scripting
+    Viewer
 
   # --------------------------------------------------------------------------
   # dependencies
diff --git a/Packages/Viewer b/Packages/Viewer
new file mode 160000
index 000000000..3a621e855
--- /dev/null
+++ b/Packages/Viewer
@@ -0,0 +1 @@
+Subproject commit 3a621e855587ae13cf043a4ed41d3ddb5fa13b8d