In this game, the cells have to be strategically placed in a grid. There are A, B and C cells and viruses (as far as I've played). A-cells are normal. Putting a second A cell on an already existing, it will (unless already affected in this train) to a B-cell and all four surrounding are quasi increased by 1 (hard to describe a little bit). Empty grid cells will be to own A-cells, its own A-cells to B cells and increase again to all surrounding 1. Even hostile O cells are to own B cells. It is therefore annexed everything directly or indirectly Pending and increased by 1. Work just as well as C-cells, which is produced by piling one above the other two B-cells. If you turn stacking two C-cells arise wall cells and this is the only effect (ie no increase of the other cells, but continue hostile annexation C-cells). Wall cells can not be taken by the enemy, remain so always so. There are also viruses. These destroy (clear the screen) all homogeneous cells, foreign and own. All cell types that I mentioned at the outset, only wall cells you can set yourself, so do not. But all but the A-cell have charging times. B cells need 4 rounds, C-8 cells and viruses 10. A maximum of two cells of a type in "inventory" accumulate, so the charging time also goes further still, once it has been through. Only after the second time it stops and only continues if you have used the appropriate cell type. A game ends when one of the opponents has a certain (large) share of the game board filled with his cells. The whole thing is backed with a quiet music and the moves with piano scales. Because I am afraid that you have not really understood by such a description the game, it is better self by playing the tutorial if you can spare the 50MB. What has annoyed me right times at the beginning, is the tutorial, in which we must not decide some trains. In the tutorial, in which the virus is introduced, one should use it in the very first train, and the only place where this is possible, is a very bad train that took me directly once let loose. :(