For me big revolution it's when we play all games and don't get profit, but now there is a lot of possibilities to take advantage. For example, CSGO you play, waste your time and get skins and cases, which you can sell and make a real money or other skins. But today I have read about DMarket. It's the only idea based on blockchain technology. The central concept it's to create global marketplace in-game items with all games in the world. Interesting. The primary currency will be their own - DMarket Coin.