@truvidien88 said in Whats the game engine?: I honestly never even heard of Spatial OS until now. I haven't played any games that use Spatial OS either. It's a rather new thing. I also backed the Chronicles of Elyria kickstarter. They planned on using it, but changed their mind when they realised the hosting would be too expensive for it's huge game world and it's offline players still being active in the world (https://chroniclesofelyria.com/blog/23401/A-Year-of-Foundation). @truvidien88 said in Whats the game engine?: But with every game as always I don't count on servers holding up on launch day. That's only a problem when more people than expected want to play at the same moment or at the same location. With Spatial OS that should be less of a problem, It should be able to scale easy. Spatial OS is also a bit of a showcase for Googles cloud services, so they will probably keep on eye on those servers too.