Heaps: A free, open-source and cross-platform game engine
I've written a couple side project games in Heaps and I'm a big fan.<p>If you're familiar with Pixi.js, Heaps and it's language, Haxe, will feel very similar. Haxe is a pretty cool language, it's similar to TypeScript but compiles to native binaries for almost all major game consoles.<p>Heaps was apparently the framework behind Dead Cells if that says anything about the level of polish you can accomplish with this set of tools.