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Trinity is a text adventure game, its events beginning in the near future. The player character finds himself trapped in the London Kensington Gardens, as hordes of nannies mysteriously block the exit. To make matters worse, a Soviet nuclear missile is about to fall. The protagonist finds a strange door and steps through it. The bizarre location outside of space and time contains other doors, each leading to a site where a historical or a fictional nuclear explosion has taken place. The player has to interact with the environment and solve puzzles to change the course of history before traveling to the New Mexico desert on July 16, 1945, and affecting the events of the fateful Trinity Test.


Trinity Commodore 128 Transition
Trinity Commodore 128 It is difficult to explain how or why I got in this position
Trinity Commodore 128 a big change is coming, and I have but little time to decide how I will handle it
Trinity Commodore 128 As much silliness as the game contains, it also has a distinctly hard edge

Promo Images

There are no promo images for this game

Alternate Titles

  • "Trinity: The Basic Power of the Universe has been unleashed." -- Tag-lined title
  • "Trinity - An Interactive Fantasy" -- Tag-lined title

User Reviews

There are no reviews for the Commodore 128 release of this game. You can use the links below to write your own review or read reviews for the other platforms of this game.

Critic Reviews

Your Computer Feb, 1987 5 Stars5 Stars5 Stars5 Stars5 Stars 100
Commodore User Aug, 1986 14 out of 15 93
Happy Computer 1986 92 out of 100 92


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1001 Video Games

Trinity appears in the book 1001 Video Games You Must Play Before You Die by General Editor Tony Mott.


In most Infocom games, the credits are hidden somewhere in the game. In Trinity, go see the old woman and type Ask the old woman about Trinity to see the complete credits.


Designer Brian Moriarty about what he wanted to achieve with the game (Computer Gaming World #32, November 1986):
I wanted people, when playing the game, to feel their helplessness. Because that's what I felt when I was reading and talking to these people and seeing these places. You could just feel the weight of history on you. Going to Trinity site and being there and realizing what this place means. I just wanted people to feel that weight on them when playing the game. Have it crush them in the end, because that's what I got out of my studies and research.


(From Infocom Home Page fan site)

The game contained a comic "The Illustrated History of the Atom Bomb", a map of the Trinity site, a cardboard DIY sundial, and instructions for folding an origami crane.


Trinity's source code is 1.32 MByte big, more than three times the size of Brian Moriarty's first Infocom game, Wishbringer (400 KByte).

Source: Happy Computer magazine #8/86


  • Computer Gaming World
    • November 1996 (15th anniversary issue) – #120 in the “150 Best Games of All Time” list
  • Happy Computer
    • 1986 - Runner-up as Adventure Game of the Year
Information also contributed by -Chris and Belboz

Related Web Sites

  • Infocom Home Page (Fan site that has compreshensive info on all things Infocom.)
  • The Commodore Zone (All about the game, with introduction, images, related links and comments area.)
  • The Infocom Gallery (High-quality scans of the grey box package and manual of Trinity.)
Corn Popper (69350) added Trinity (Commodore 128) on Sep 01, 2005
Other platforms contributed by Droog (522), Tony Van (2855), Terok Nor (27138) and Belboz (6576)