You should def checkout “Death Must Die”. You basically move around collecting upgrades, auto-killing hordes of enemies, and when you level up you pick one of three buffs/abilities from one of ten gods. The buffs/abilities have both ranks and levels. There are 3 acts to play thru each with different mobs. After you beat all 3, you can add more effects to mobs to increase difficulty and rare equipment drop rates. The acts have a 20 min timer, but of course it pauses when you’re choosing buffs or the game is otherwise stopped. There’s six characters to pick from each with unique a talent tree that enhances your playstyle.