diff --git a/.gitmodules b/.gitmodules
index 08509f2d1b9..44698d144cd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -62,3 +62,6 @@
 [submodule "data/terrain_overrides/classic"]
 	path = data/terrain_overrides/classic
 	url = https://github.com/Warzone2100/data-terrain-classic.git
+[submodule "data/terrain_overrides/high"]
+	path = data/terrain_overrides/high
+	url = https://github.com/Warzone2100/data-terrain-high.git
diff --git a/data/terrain_overrides/high b/data/terrain_overrides/high
new file mode 160000
index 00000000000..ed6bef73723
--- /dev/null
+++ b/data/terrain_overrides/high
@@ -0,0 +1 @@
+Subproject commit ed6bef73723070aba7f81e130a7bf97297a728a4