DatTank.com is one of the free online multiplayer .io games in which you will control a tank and fight against a lot of enemies at a time. The objective is to dominate the map. By collecting the most kill, you can reach the position that you want. In case you are damaged, try to pick up health packs to restore. Also, remember to find more ammo. Working together with other teammates is a good idea to finish off stronger adversaries. Good luck!