Proxy-Scavenger is a first person survival adventure game I worked on for a long while in my spare time that was about repairing broken down spaceships and recovering parts for money. The idea was that you'd explore randomly generated spaceship interiors and face environments with various issues such as excess heat or radiation and have to manage your survival and repair materials to adequately repair a ship or harvest working parts. You would then use the money earned to upgrade your ship, suit, tools, or buy spare parts to help with repairs.
Everything was placeholder as it was mostly about exploring mechanics and seeing if I could get things to work and if so, were they interesting or fun.