What are poker signup bonuses and exactly how do they work? Poker signup bonuses are extra cash that on-line poker spaces give new players for registering for their poker room. They are incentives to have the players to deposit and remain playing within site. Most of the virtual poker crypto signup bonuses are match bonuses add up to the same amount of money that you deposit. You will see information like 100per cent up to $500 or 30% up to $1000.