I think peerplay is a much more advanced project and safer investment right now. https://steemit.com/investing/@xwerk/peerplay-blockchain-primary-crowdfund-has-started-today-great-chance-for-investors-and-gamblers-alike
The 0% rake concept can work, but margins are so slim I don't believe investors have good chance to regain their investment in a realistic amount of time. Can you elaborate presenting some numbers?
Peerplay definitely looks interesting . But I think it better to diversify into other projects too. Edgeless will be looking to get about 5% of all money wagered be placed as a sports bet with 4% ROI. Sports betting will be a major stream of revenue. There will be additional games too. 0% edge games will be to attract players.