"The Return of the Revenge of the Unofficial LC of DOOM!" (or "The Return of the Revenge of the Unofficial LC of DOOOOOMMMMMM!!!!!") was the fourth Star Trek Online: Unofficial Literary Challenge based upon the Star Trek Online: Literary Challenges. It was the fourth Star Trek Online: Unofficial Literary Challenge of Star Trek Online's Season 9.5. It was managed by Star Trek Online Forum users and was made up of three separate challenges.