I've actually played with mods and Zetrith's multiplayer mod is a must! No honestly, stop what you're doing and go check it out. Especially if you have at least

I've actually played with mods and Zetrith's multiplayer mod is a must! No honestly, stop what you're doing and go check it out. Especially if you have at least one friend! I manage to even make it work with many many mods. It's been a couple of years since I last played using this mod, so it's probably even better now. The only down side at the time was that it would desync sometimes, so you'd have to wait a bit a resync, but it's still so worth it because the experience is just so amazing! I would probably pay the price of the game again just to have an official version of multiplayer. This is co-op multiplayer, at least how I played it. Highly recommended to anyone who likes RimWorld and has at least one friend!