diff --git a/maptools_mod/init.lua b/maptools_mod/init.lua
new file mode 100644
index 0000000..fb141af
--- /dev/null
+++ b/maptools_mod/init.lua
@@ -0,0 +1,15 @@
+-- twi_mods/maptools_mod/init.lua
+-- modify maptools
+-- Copyright (C) 2025  1F616EMO
+-- SPDX-License-Identifier: Zlib
+
+for _, name in ipairs({
+    "maptools:copper_coin",
+    "maptools:silver_coin",
+    "maptools:gold_coin",
+}) do
+    twi_fx.override_group(name, {
+        not_in_creative_inventory = 1,
+        not_in_craft_guide = 1,
+    })
+end
diff --git a/maptools_mod/mod.conf b/maptools_mod/mod.conf
new file mode 100644
index 0000000..793f6b5
--- /dev/null
+++ b/maptools_mod/mod.conf
@@ -0,0 +1,2 @@
+name = maptools_mod
+depends = maptools, twi_fx