Causality Effect

From Valve Developer Community
Revision as of 03:13, 25 August 2019 by FloraC (talk | contribs) (Add some words on what it is; mark orphan)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

Causality Effect is a single-player mod of Half-Life 2 released in 2007.


Starting with the "Red Letter Day" of the original game, the story is changed. The teleportation experiment creates a hole in time and space, and the player's task is to travel through time and correct events that happened in the past. Features multiple endings.

External links