How do I participate in the project? The game has not launched yet?
The roadmap shown their beta version will available at the end of the year it's mean for now the game didn't launch yet. If you're willing to join their bounty program you can go here
https://bitcointalk.org/index.php?topic=1989696.0
Btw i just check orexon.me is that a correct link to the website ? Cause i didn't see nothing at there.