Causality Proof of Concept is a game concept and tech demo of a multiplayer co-operative action-adventure game with puzzle solving elements. Causality casts players as group of monks who need to jump through time in order to save their monastery from the forces of evil.
In Causality players jump between various points in time, all which have some critical events happening in them. Players can then alter the future through causality effect by changing the events in past.
The effects of causal changes and passing of time are portrayed directly in the game world. Players can see trees grow and walls crumble as time flows forward and past events are altered.