Nowadays, Games Workshop is known almost entirely for its miniature-based wargames, but the company has a long history of releasing roleplaying games (bringing Dungeons & Dragons to the UK) and producing and designing boardgames such as Talisman. One of their lesser known titles was Chainsaw Warrior, a single player game released in 1987.
The game is set in the near future (2032) in New York City, where a rift in time and space has opened up, spilling out zombies and other terrible creatures. At the heart of the onslaught is a shadowy figure referred to as “Darkness” who commands the harrowing creatures. After initial attempts to stem the tide of monsters failed, the US military brought an unnamed ex-special forces agent out of retirement for one last mission. Taking on his role, you have 60 minutes to infiltrate a building at the center of maelstrom and find and kill Darkness. If you fail, New York is destroyed and the game is over.