Godot

[RustoMCSpit]

https://godotengine.org/download/android/

[shuvashish76]

https://www.f-droid.org/en/packages/org.godotengine.editor.v3/
https://www.f-droid.org/en/packages/org.godotengine.editor.v4/

The Android editor is currently in an experimental stage. The UI has not been adapted
for touch screens yet; using a hardware keyboard and mouse is strongly recommended.

I didn't add that to list because of this reason but feel free to contribute if you think v4 or v3 stable enough for a normal user.

[offa]

Indeed, the notice is placed everywhere. It mentions the editor only though, but the project itself is a game engine (= the actual important stuff!?). Does anyone have more insight here?