Kiekko.tk is a java-based ice hockey game. Every player takes control of one player in the rink. The player is controlled by a mouse. Goalies cannot be controlled, as they are computer controlled. To practice, players can join training rooms where players are allowed to leave the rink whenever they see fit. Players can also join a team and play team matches. Players are able to spectate these matches as well as training matches. By clicking and holding the left mouse button, the puck can be passed or shot. By clicking the right mouse button, an automatic pass is sent to a teammate closest to the cursor the moment the right mouse button is released. To increase the competition of the game, members have organised leagues.