Out of This World (Another World in Europe) is a cinematic platformer that uses vector-based graphics and rotoscoped animations to deliver a minimalistic yet expressive visual style. It features a combination of action, platforming, and puzzle-solving mechanics, with a deliberate lack of HUD and textual guidance. Gameplay emphasizes trial-and-error, timing, and exploration, with a limited checkpoint system.

In 2005, a homebrew port of the Atari ST version was released for the Game Boy Advance, officially allowed by Éric Chahi to be published with the original assets.

You assume the role of Lester Knight Chaykin, a young physicist hurtled through space and time by a nuclear experiment gone wrong. You'll need to dodge, outwit, and overcome a host of alien monsters and deadly earthquakes that plague the alien landscape you now call home.