Made two mods for Stellaris:
First one adds a civic called Nuclear Survivor. Starts your species off on a Tomb World, with two special vault buildings and a new building called a Vault City, which can be built in other Tomb Worlds. The vault buildings, in addition to giving its standard bonus, give extra unity. It's really just an adaptation of another mod I liked to the latest version of Stellaris.
Second one adds a pirate namelist. I thought the pirate ship names were funny so I grabbed the two vanilla pirate namelists, mashed them together and added a bunch of names based on historical pirates, pirate strongholds and a few name generators I found online.