Untrusted
Rewrite the game's own JavaScript to escape each level
Untrusted is an adventure game where the code is the puzzle. You guide Dr. Eval through a series of levels, but each level starts impossible to beat. To get through, you edit and run the actual JavaScript that controls the level. Most of the code is locked, so you must find a way forward with the few lines you are allowed to change.
Free · No login · Browser · Intermediate
About Untrusted
The game rewards creative thinking about JavaScript, objects and game logic. It suits intermediate programmers who can already read JavaScript.
It runs in the browser and includes an API reference for the in-game functions.
On Breakpoint since 23 Oct 2026.