Trinity

Trinity is a 1986 interactive fiction adventure written by Brian Moriarty and published by Infocom. An American tourist vacationing in London during the Cold War escapes a sudden nuclear attack by stepping through a door floating in the air, and is drawn into a meditative, anti-war journey across the history of atomic weapons.

Story

Often described as an adult Alice in Wonderland, Trinity uses surreal vignettes and shifting timelines to lead the player toward the 1945 Trinity Test in the New Mexico desert. Each location asks the protagonist to reckon with a different moment in the chain of events that opened the Atomic Era.

Gameplay

The game is a parser-driven text adventure built on Infocom's Z-machine engine. Players type commands to explore environments, manipulate objects, and solve puzzles whose solutions tend to reward observation and reflection rather than brute-force experimentation.

Mac compatibility

The Macintosh release runs on 68k systems from the earliest System releases through Mac OS 9, and is playable today under SheepShaver, Basilisk II, Mini vMac, or ScummVM 2.2.0 and later. Macintosh Garden hosts revision 12 as a mountable disk image and revision 11 in dc42 format.

Legacy

Widely cited as one of Infocom's most ambitious literary works, Trinity is frequently grouped with A Mind Forever Voyaging as evidence that text adventures could carry serious thematic weight at the height of the home-computer era.