ZETHR looks interesting. I like how it has games that help it to have a DAO Casino feel. Still, I think P3D is better as a DAO Casino because TEAM JUST makes more original games like FOMO (that ended up being copied more than the powh system), and there are other 3rd party dapps that tie into their ecosystem, such as ethorse and king of the crypto hill (KOTCH). Team JUST are simultaneously developing new games/dapps and fostering the community and cryptosphere to help in developing the P3D ecosystem.