I am marketing manager of an online cryptocurrency casino 'BetSpider' (
https://betspider.io) It has been almost over 1 year since its launch but the revenue is not good
Just a small suggestion from me, maybe you want to do something like other casino gambling sites do here, advertisements, campaigns, if you have good funds for participants.
Just try it, at least one month, if your crypto casino is progressing, it can be continued and so on.
I see many ideas like this that most gamblers work on they succeed.