Basically, when I say anything is possible, I mean anything within the sandboxed world of Gimkit. It’s not possible to escape gimkit and make an international game server like in minecraft that anyone can j0in. You can’t transfer people from game to game like that.
And of course, making games that do that would be against Gimkit’s Creative TOS. This could probably be done with modding or something but that would require a lot of work that I don’t think a lot of the modders who might have the capability to do it can provide.
In the end, the "It’s not impossible” topic is meant to be an inspirational message, but it doesn’t always apply. While it’s true there is absurd level of things you can do in GKC, it’s not possible to do everything. My post shouldn’t be used as the hard proof that anything can or can’t be made- it’s just inspiration.
Hope this helps!