Well i do have an idea but i don't think i can explain it very well. How about a game that you can play ONCE per day in which you can win, FOR EXAMPLE, a maximum of 0.05$? If so, that game should be made out of 5 levels. You get 0.01$ for each level you pass but if you complete level 2 and die in level 3 you still get 0.02$. I thought of an action game (doesn't matter with what) in which you complete a level after you beat a boss. So if you beat all 5 bosses you get 0.05$ and all you have to do is wait for tomorrow so you can start again. If you manage to take out only one boss you get 0.01$ so your effort isn't in vain. Anyway only the administrators decide if they implement this feature but the game should be hard so not anyone can complete it. This is AN EXAMPLE of how playing a game for money is fair. Tell me what do you think.