

Simon Tatham’s Puzzles is my long-time favourite and recently I got really hooked on Water Sort (though that one is a bit lackluster in custom game generation). I don’t know if these meet the progression or even deep gameplay requirements, but at least they are challenging and more or less polished.








uMatrix was awesome. It’s a massive shame it didn’t get any more updates, because it started breaking important sites (like bank authentication) for me just by the addon being enabled even if I turned it off from its own toggle, so I had to switch to NoScript, which is simply worse (far clunkier interface and consistently fails to show all domains).