diff --git a/mods/cs_expanded.js b/mods/cs_expanded.js
new file mode 100644
index 00000000..8f83ff87
--- /dev/null
+++ b/mods/cs_expanded.js
@@ -0,0 +1,31 @@
+// Made by Kopalecek (also known as davistudios or sylas)
+
+/* 
+
+If you would want to use this to make stuff like de_expanded.js, just put "Based off cs_expanded" in a comment at the top. And remove the previous comments in general.
+
+Ryan, if you see this, it would be great if you add ids for stuff like controls, the "Sandboxels Introduction" or menu items in like settings or mods.
+
+*/
+
+const reqCode = 'cs' // Change this to the lang code you want.
+
+const menu = { // Just change the values in this.
+	pauseButton: 'Pauza',
+	resetButton: 'Reset',
+	replaceButton: 'Nahradit',
+	elemSelectButton: 'VE',
+	tpsButton: 'TZS',
+	infoButton: 'Info',
+	savesButton: 'Uložené',
+	modsButton: 'Módy',
+	settingsButton: 'Nastavení',
+	changelogButton: 'Změny',
+}
+
+
+if (langCode == reqCode) {
+	Object.keys(menu).forEach(key => {
+		document.getElementById(key).textContent = menu[key]
+	})
+}
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