Comment by sxn

I'm not sure if there's a complete list to be found, but engines usually have a showcase section on their website:

- Godot: https://godotengine.org/showcase/

- Löve (doesn't have a separate page, but showcases a few games at the bottom of the page): https://love2d.org

- DragonRuby: https://dragonruby.org/toolkit/game/samples

- Haxe (though not an engine per se): https://haxe.org/use-cases/games/