Little Big Planet 2

LittleBigPlanet 2 (PS3, 2011) is a creative masterpiece that transformed the series from a platformer into a full-fledged game-making toolkit. With enhanced creation tools (logic chips, AI programming) and a charming story mode, it lets you craft anything from RPGs to racing games—then share them online. The floaty physics take getting used to, but the endless player-made levels (RIP servers) and local co-op chaos make it a timeless sandbox of joy.