With the GP sponsorship, players would be able to play and get GoldPieces? How would that work out in the game? Like after taking and completing a job you get so many GoldPieces?
HyperFuture beat me to it - this is a single-player game so you won't be able to use currency in-game. (I may progress to creating MMOs one day, but my heart is in retro graphical adventure games!

) Glad you find the game interesting, hope you don't find it less so now?!?
Forgot to mention that our other game in production, Troll Song, is being sponsored by GP's sister currency HYPER.
I've announced the sponsorship deal on the
Captain Disaster Dev Blog and also my
Indie Game News website.
I wasn't really thinking of "using" currency in game, by that I would assume you mean being able to deposit into it or something. I am more of a single-playered gamer myself over MMO's. No need to apologize and it doesn't seem less interesting.
I used to love Roberta Williams' games, like whodunit's/
LauraBow series, and the
King's Quest series.
I would think if there was a game like those, once you got to certain "chapters" maybe you could earn GoldPieces. In a way similar to a faucet, you put your address in, play the game, and get payouts after you hit certain "goalposts" or "levels" throughout the game. But obviously you could only do it once or you'd know how to do it everytime. But if something like that could be done, maybe it could be like King's Quest (which had 8 games in the series), and just continue on with new games after you beat each one.