The Hugo series is a collection of games developed by David Gray based around a character named Hugo. The series began as a trilogy of adventure puzzle games similar to the Sierra On-Line adventure games, and ended with a first person shooter similar to Wolfenstein 3-D.
- Nightmare 3-D (A House of Horrors, The Plasma Core, Death or Glory)
- youtube.com/watch?v=EyGzIHkHomk - Pushing Up Roses.
- mobygames.com/game-group/hugo-series - MobyGames.