Finntank.io is an endless tank io game. You can build things, destroy things, fight, and work with other players there.
Your score points counter is the most important thing in Fintank.io. You can still play as a guest, but most of the features will only work after you sign up. After you sign up, you can build a base, put a door at the front, and do other things. To build and attack, you need money or energy pellets. You can find these yellow pellets all over the map. Get more energy by killing people and bots. It's also possible to try to destroy enemy bases, which are where many useful things are kept.
Have fun and good luck!