You can find a list of games on the Steem blockchain here: https://steemprojects.com/categories/games/
Among these games, Steem monsters is undoubtedly the best game built to be built on the Steem blockchain. My statement may sound weird since the offcial tournament hasn't even begun yet but the fact is that even the alpha stage cards of the game have garnered more attention globally, than any other game on the Steem blockchain.
Once the game starts the value of these cards is going to go up. I have bought myself a neat little pile of them before that happens. Steemit is becoming a crowded place. Soon there will be even more people here and with that there is a chance that minnows like me are going to pushed aside. So, I say this is as a fellow Steemian to all – find something worthwhile to do here on Steemit and make a mark. Perhaps a niche or something that you are already good at. I am trying to do that with Steem Monsters and now with musing.io