Robots as Spaceships: Walkers and Power Armor
Gurps is flexible, but often its gear lists are fairly bare bones, especially for niche gear like power armor. I've wanted a system for making whatever size and layout of power armor I wanted, with small tweaks in sizes or with more or less armor in different locations. I also wanted it to work seamlessly with other vehicle types.
We now have such a system. We can now build walkers and power armor with spaceships and get values that are roughly similar to the values in the gear books. I'm really happy to have this, and its been one of my big goals for Robots as Spaceships.