Um without assuming give me a clear reason why it smells fishy.

I've had 12 customers so far today, if you add it all up:

12 x $15

= $180 USD.

Now I know for a fact I'll have a few more at least 15 more clients before today ends.

Anyone that wishes for the game, I send them the game source, they pay 1/2 of it, then I send the the game server/client, teach them how to set it up then they pay the other 1/2

I highly doubt my way is scamable eh?