Diamonds are an in-game currency that is used for performing base upgrades. Diamonds can be stolen by other players (called rivals) in PvP mode if they manage to kill the player; the amount of diamonds lost depends on how many there were ready for collection at the time. Diamonds are stored in a player's vault, which can usually hold up to a certain amount at a time; the initial amount being 1000 diamonds.

How to get diamonds

• Collecting them from your base every now and then
• Stealing them from rivals while playing PvP
• Completing challenge missions