Others have mentioned Godot and I really recommend it as an introduction to game development. It is very easy to pick up and the default programming language (

Others have mentioned Godot and I really recommend it as an introduction to game development. It is very easy to pick up and the default programming language (GDScript) is easy to learn. I have a few small games and plenty of PoCs with Godot. While many engines can be ported to the switch, including Godot, your son won't be able to do that with the Switch he has. This requires an official dev kit, which requires approval from Nintendo. See this thread to get an idea of what is involved. https://old.reddit.com/r/godot/comments/1f9o4sp/i_just_received_my_nintendo_switch_dev_kit/ https://old.reddit.com/r/godot/comments/1f9o4sp/i_just_recei... If you think your son will be motivated to make a game for a handheld platform I recommend the Steam Deck. Your son can install Godot on the deck and with a mouse and keyboard attached your can actually use the Deck to both build and play his game. The short feedback cycle will hopefully keep him engaged.