As developers already answered, it's a typical fee based business model, HYPERBRIDGE are taking a cut on the crowdfunding raise, game purchases, etc. In the same way Kickstarter and Steam are profitable. As time goes on developers will add more utility to the protocols, such as item marketplace trading, with a fee being taken by the protocol. Eventually these profits will be split between delegated representatives in a DAO. At which point solutions outside of their own organization are incentivized (as they can define their own fee structure within the DAO), and can be built on top of the same protocols.