Paper IO is a free online multiplayer game where you control a moving cube and try to capture as much land as possible while avoiding collisions with other players and defending your own territory.
How to Play Paper IO
Moving around the map, you start with a small piece of land and as you move out of your territory, you leave a trail behind. If you can safely return to your area and close the loop, everything inside the line becomes your new land. Try to expand your color-coded area on the shared map.
However, while you are drawing that line, you are vulnerable to attack. If another player crosses your trail before you complete the circle, you are eliminated. You can do the same to your enemies by crossing their path and destroying them before they take you down.
Controls:
Use WASD or the Arrow keys to move your cube in four directions.