Overdose was a mod that was being developed by RGamesINC in 2007 but was ultimately abandoned and later cancelled. A number of sprites and graphics had been uploaded to the mod's Wolf3d Haven Thread, as well as some aspects of the story. Unfortunately since the image host has since removed all of its images none of the graphics from the mod before its cancellation have been preserved.
- Brand new cast of enemies and weapons
- Modern urban setting
- Nonhostile NPCs who could be interacted with for story purposes
- Cinematic hallucination events