You used to just buy a game.

No ads between waves. No timer telling you to come back tomorrow. No starter bundle, no season pass, no wallet with a win condition.

Cortex Slime Defense is three full strategy games that share one island and one collection of slimes — build a maze, push a lane, take a board. Win something in one and you are further along in the other two.

Every slime is drawn by hand. Every note of music is written as you play, so no two runs sound alike. Ten arenas, each with its own weather and its own mood. And a wandering philosopher slime who turns up only when you have genuinely earned it, to hand you one of sixty-eight painted cards.

Buy it once. It’s yours. Play it on a plane.