From the introduction:
Palimpsest is a game for three players, about an otherwise unremarkable moment in time being fought over by three different time traveling bodies:
● The Time Corps , a far-future group operating outside time itself and charged with ensuring (their) history remains unchanged. The game begins with a small event that results in substantial changes downstream. This cannot be allowed.
● The Protocol , a shadowy agency observing our world from a parallel reality. Operatives carry out directives from The Protocol Committee, a group of competing artificial intelligences that accurately predicts likely futures. The Protocol actively interferes in other timelines to create situations, technologies or people of use in their own reality. The Protocol has just triggered a change that will arm them with medical technology that ensures their future survival.
● Stormwell, an individual psychic with the ability to project back in time into other people. Stormwell can also sense when the timeline has been changed, which happened five minutes ago when their lover Cortez died unexpectedly.