Explore changing worlds, leave notes, photos, drawings and tunes, and discover the traces other players leave behind.

[Prepare the subjects. Maintain the cycle. Do not disappoint the Administrator.]

A convicted surveyor charts a hostile world from a cramped vessel using only sonar, a balloon, and a 3D printer.

A 5-year timer. Nothing will happen at the end. Unless, maybe?

You have to find a way out of Butter Jail...

Every jump makes your next jump stronger — master momentum, outplay other players, and see how high skill alone can take you.

One tiny test subject, one pair of glitchy cloning gloves, infinite facility violations.

An experimental bullet hell that interacts with the song that is playing.

Write and run BF Code