diff --git a/README.md b/README.md
new file mode 100644
index 0000000..08e7e90
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# Castle Gates
+
+![screenshot](screenshot.png)
+
+License: MIT (see [LICENSE](LICENSE))
+
+### Features
+
+ * Normal oak and steel doors
+ * Sliding doors
+ * Swinging doors
+
+This allows the construction of portcullises and drawbridges as well as conventional swinging doors.
+Use the screwdriver to reorient gate pieces as needed for these purposes.
+
+The modding API is documented here: [api.txt](api.txt)
+
+
+### Dependencies
+
+ * Minetest 5.0.0 or newer
+ * Minetest Game compatible `default` mod
+
diff --git a/README.txt b/README.txt
deleted file mode 100644
index 113bd89..0000000
--- a/README.txt
+++ /dev/null
@@ -1,11 +0,0 @@
-Castle Gates
-
-Licence: MIT
-
-see: LICENSE
-
-=-=-=-=-=-=-=-=-=-=
-
-This is a mod all about creating castle gates and dungeons. It contains dungeon doors and bars, and also a set of nodes for constructing larger swinging and sliding gates.
-
-This allows the construction of portcullises and drawbridges as well as conventional swinging doors. Use the screwdriver to reorient gate pieces as needed for these purposes.
diff --git a/depends.txt b/depends.txt
deleted file mode 100644
index 9fe68ac..0000000
--- a/depends.txt
+++ /dev/null
@@ -1,5 +0,0 @@
-default
-castle_masonry?
-doors?
-xpanes?
-doc?
diff --git a/description.txt b/description.txt
deleted file mode 100644
index 2399226..0000000
--- a/description.txt
+++ /dev/null
@@ -1 +0,0 @@
-This is a mod all about creating castles and castle dungeons. Many of the nodes are used for the outer-walls or dungeons.
diff --git a/init.lua b/init.lua
index 3292cef..d3f8c38 100644
--- a/init.lua
+++ b/init.lua
@@ -1,3 +1,7 @@
+if not minetest.get_translator then
+	error("castle_gates requires Minetest 5.0.0 or newer")
+end
+
 castle_gates = {}
 
 local modpath = minetest.get_modpath(minetest.get_current_modname())
diff --git a/mod.conf b/mod.conf
index d4d5efe..38408da 100644
--- a/mod.conf
+++ b/mod.conf
@@ -1,4 +1,7 @@
 name = castle_gates
-description = This is a mod all about creating castles and castle dungeons. Many of the nodes are used for the outer-walls or dungeons.
+description = """
+This is a mod all about creating castles and castle dungeons.
+Many of the nodes are used for the outer-walls or dungeons.
+"""
 depends = default
 optional_depends = castle_masonry, doors, xpanes, doc