Subnautica launched without any multiplayer support, but modders have found a way to add this major feature to the base game. The modding community for this survival game has been active since it officially launched in January 2018, adding in new challenges and quality of life tweaks to alter the stock experience. Want to know what the best Subnautica mods are? Subnautica tasks players to survive on an alien ocean planet with nothing but a life pod to begin with.