The only ads are on the top of the screen. It doesn't pop up in the games at all. Also a lot of Kongregate games go full screen or into a different browser so you never see them. If the game proves to be strong enough to hold its own on steam or tablets alone; then great. If it isn't you'll eventually be playing one of those undiscovered great games with that low player base. Also you wouldn't have to put the entire game and the multiple part up. A simple 10 level demo would work. There could be a button in the game to link it to cardhunter.com mentioning if you want to play the full game with multiplayer aspect click here. The demo itself could just be 10 unique maps playing with characters that have static items and gain none from the demo.