I will share one project it's name Vreo.io, here is their link at bitcointalk https://bitcointalk.org/index.php?topic=2886707. They they embed advertising in the gameplay, you should see a promo video on their website, that's amazing idea! The project took into account interests and benefits for all parties: game developers, advertising brands, even gamers themselves will be interested in the advertising process.
Mainsite: vreo.io
ICO Campaign: ico.vreo.io
Bounty Campaign: https://[Suspicious link removed]/xUh8Fv
https://bitcointalk.org/index.php?topic=2898738.msg29810876#msg29810876

 Join toTelegram grp, don't miss the last cryptoworld and project news, information about meetups and just get a good mood  Cheesy :
https://t.me/vreoico