Here's a fun thought: Minecraft mod for disabilities. And not just cosplaying via having like, a wheelchair or walking stick you can equip at your leisure. Actual random, permanent disability that can hit your character at any time. Like whoops, from now on, on this server, you walk at 1/4 speed unless there's a walking stick in your off hand, or oopsy, now your character can only move between different seat mounts like chairs and wheelchairs, and you can't jump or mantle one block heights