You control a single cell. Use the ARROW KEYS or CLICK (TOUCH on mobile) in the direction you want to go.
Your cell always has a nucleus
Devour other cells by surrounding them with your team.
If a cell is linked with its teammates, surround the entire group... so they have no "free" spaces to move to.
Move to the right to devour the group.
You can drop your cell at any time (SPACEBAR). It simply stops moving, and you can rejoin the game as a new cell.
New cells are born whenever players enter the game. Once each team has a player ready to join, quickly select the space you want, and both new cells will be born.