diff --git a/.gitmodules b/.gitmodules
index 06f6752f0..2605324db 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -52,3 +52,6 @@
 [submodule "common/addons/manifest-addon-loader"]
 	path = common/addons/manifest-addon-loader
 	url = https://github.com/PolyhedralDev/Terra-manifest-addon-loader
+[submodule "common/addons/structure-sponge-loader"]
+	path = common/addons/structure-sponge-loader
+	url = https://github.com/PolyhedralDev/Terra-structure-sponge-loader
diff --git a/common/addons/structure-sponge-loader b/common/addons/structure-sponge-loader
new file mode 160000
index 000000000..5c7455098
--- /dev/null
+++ b/common/addons/structure-sponge-loader
@@ -0,0 +1 @@
+Subproject commit 5c74550980abb3e7c7addc10c8e0c068440cf433