This is an open-source game heavily inspired by 5D Chess With Multiverse Time Travel
Ths site is running the latest stable version of 4D Chess - v1.2.0 Build 14
Check out the source code for this site at github.com/AnthonyW2/4DChess
[Global settings are coming soon(ish)]
[There's a lot of rules, we're still working on getting them all together]
For now, see this site for how to play 5D Chess With Multiverse Time Travel