Luxtorpeda is a Steam Play compatibility tool for allowing a certain set of games on Steam (mostly pertinent to older titles) to run using a native Linux engine, rather than having to use Proton for a Windows-only game. For instance, Ocean’s Heart has a Windows-only icon on the Steam store page. But with Luxtorpeda, we can force the game to use the native Linux version of Solarus, the engine that powers the game.