IGTAP

IGTAP (an Incremental Game That's Also a Platformer) is exactly that: complete short, tight platforming courses to earn Power, then sink it into upgrades that generate even more. Active players speedrun courses to maximize output; idle players sit back and watch an army of clones retrace their best path. New movement abilities open up higher-income courses and faster routes through old ones, and a hard-mode B-side reworks every course once you've finished the base game. Free to play in your browser — no download or account needed — with a Steam release on the way.