Unity Game Studio for a game and blockchain integration

Looking for a game studio with vast experience that can build almost any type of game from scratch. Unity is the preferred engine, and blockchain integration is also desirable knowledge. I want to see your portfolio and the best stuff you've built before deciding on a long term partnership with you.

Games I'm interested in:
- Tekken style fighter game
- Magic card game similar to hearthstone
- Battleground or arena game with magical characters and skills

Feel free to show what you have.

Best of luck.