Open Mod is getting out of the Pre-Alpha Prototype phase, therefore the Early Access stage switched from closed Early access to public Early Access just now, since it now has a polished gameplay and is stable.
However, there is a lack of content such as more maps and more Co-Op game modes. We are working on that! But since the gameplay, customization systems and overall the game is polished and stable we've decided to make the Early Access public so we could receive feedback in real time from you all!
Have fun and we would love to hear your feedback! Join us on Discord!