Hi Everybody
Multiplayer is finally here. We apologize for the long delay, it's taken much more work than was originally anticipated, but we hope you'll find it worth the wait.
It's not quite ready for final release, but a beta build is now publicly available. To use a beta branch, right click the game in your Steam client, select properties, then betas, then select mp_beta. Steam will automatically update your game to this version.
We suggest that you start off playing small custom maps with not too many players. You can select the Grand Campaign, but it probably won't be a great MP experience.
It is a beta build, and there are still some issues to work out. In particular, the game desyncs a bit too often, and while resyncing is automatic, it may affect your experience. If you get persistent desyncs, try quitting and reloading. Please provide us as much feedback as you can when you encounter such issues.
Hope you have fun with it, and we look forward to hearing about your experiences.