Teams can have up to 4 players. Players on the same team share the rewards of the NPCs they sink. If a ship gives 100 gold and 100 diamonds, if one of the team sinks the ship, the team gets 25 gold and 25 diamonds if there are 4 players. Team advantage only applies if players are on the same map. If a player in the team has a mission (Sink Ettan, Kill Monster, Sink NPC), if one of his team sinks an NPC, the mission progress will be accepted. Bosses are not affected by the team. You can turn off the team request in the settings section. If the player is not active in the game, 1 life appears.