After years of trying you finally manage to dial into other-space. You find that the dweller of other-space has challenging questions about computability and is asking for your help. 75+ levels Solve puzzles in constrained spaces using a handful of instructions Solve open-ended problems and design your own solutions Optimize your solutions for speed, instructions or space Use multithreading - carefully time and synchronize your execution threads to halve the execution time Set breakpoints - step backward, or even step forward! Compare with other players - see how your solutions rank with fun histograms Create your own levels, share them and solve community made levels Trailer music: "Home Dimension" by Joey Freeze / CC BY 3.0