diff --git a/.gitmodules b/.gitmodules
index 384a47c4..30bc9739 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -65,3 +65,6 @@
 [submodule "mods/pkarcs"]
 	path = mods/pkarcs
 	url = https://git.tchncs.de/Illuna-Minetest/pkarcs
+[submodule "mods/columnia"]
+	path = mods/columnia
+	url = https://git.tchncs.de/Illuna-Minetest/columnia
diff --git a/mods/columnia b/mods/columnia
new file mode 160000
index 00000000..2e91b7ea
--- /dev/null
+++ b/mods/columnia
@@ -0,0 +1 @@
+Subproject commit 2e91b7ea177157fc3a5693549ac5c0ddb97e151b