From publisher blurb:
The Fall has come and with it the Twilight of Humanity....
Plague Zombies, Alien Horrors, Insane Robots and Computer Programs. The population of the Earth never stood a chance. A world of grim survival and constant death, Twilight Fall is a post apocalyptic setting where players must struggle against all manner of threat in an attempt to eke out an existence in a hostile world where death is only the beginning of the nightmare.
Twilight Fall uses a variant of Mini Six, part of the OpenD6 family of games which allows for quick character creation and takes only minutes to learn
The Twilight Fall Core Book Also includes:
Six unique character classes including AI's, Aliens and Modified Humans.
Over 2 dozen unique, hostile creatures and robots, all who pose unique threats
4 premade locations including maps, places of note, adventure ideas, and NPCs
Additional information regarding different terrains, threats in the wild, threats to survival, and other details needed to create and craft adventures and locations of your own.