Your task is to put things at their places inside a complex computer system. It’s a whole world with its own laws and filled by mono-drones, which you will control. Use them to place tetra-blocks at its places. There are up to 8 different types of mono-drones with individual features (explode, swap, infect, time-control and more) Hidden rules of game world, which you have to explore for progression Non-linear. You always have few levels to try. If you can't solve one, then try another! More than 100 levels which were built with care for you to learn all the rules step by step.Reach System Core and discover how this techno world was born!