Going Medieval, a 3D colony builder like Rimworld, has been in EA for almost three years, and it’s constantly getting new things added to it. The most recent major update was allowing for taking prisoners and adding a conversion system so you can convince them to join you. Aside from that, the devs have added feast and religious events that you can trigger, they’re always adding new buildings and crafting stations, and there’s still more to come like NPC settlement raiding and such.