Current version is 1.4.1h.
I have a cracked server running at the ip address 18.104.22.168:8223
You can connect to this server using the cracked version. We have a discord for the server as well.
Right now the devs have not added DRM protection to the game servers. Which means it'll let you join real servers. BUT, I wouldn't do that. When the devs add the crack protection, you'll be locked out of those servers and you won't be able to get your progress back even if you buy the game and rejoin. My server is modded so you can still play and not lose anything.
There is a bug where sometimes servers don't always show up on the server list. If you direct connect with the IP address above, it will be in your recent servers list so you won't have to search for it again.