RoboZZle
Program a robot with tiny functions to clear each puzzle board
In RoboZZle you program a small robot to collect all the items on a board of colored tiles. You do not steer it directly. Instead, you fill a few short function slots, F1 to F5, with commands such as move, turn and paint a tile, and the robot runs them. A function can call another function or itself, so short programs can do a lot.
Free · Browser · Intermediate
About RoboZZle
The puzzles train you to think in loops and recursion with very little space. Players make the puzzles and rate them from very easy to very hard, so it suits both beginners and experts.
It runs in the browser, with a tutorial and a campaign. You need to register to submit your own puzzles. Igor Ostrovsky created the game.
On Breakpoint since 23 Oct 2026.