Sure, the prize pool is comprised of both the sponsorship funds that The Bitcoin Company so graciously contributed, as well as a revenue share from sats spent on the server.
So whenever someone buys land in the game for example, half of the sats spent instantly get added to the prize pool and are then rewarded to hashing players/clans.
I plan to support this game for as long as players want to play it. If they continue to stay as engaged as they are now, we should have no trouble getting continued sponsorship to support the prize pool.