The mod you are trying to view has ceased development and consequently been archived. If you are a member of this mod, can demonstrate that it is being actively developed and will be able to keep this profile up to date with the latest news, images, videos and downloads, please contact us with all details and we will consider its re-activation.
A total conversion mod of Alien Swarm based on Portal 2. Through your travel in the time tunnel of Retrospective you'll re-discover Aperture Science in 1960, where you'll meet pre-historic creatures, will confront giant chickens, find time holes, fight radiactive zombies, mantis men and many other creatures, You can explore the old Aperture Science alone or in a mixed quest with your partner in science, through the co-operative mode.
Looks so freakin' badass! Amazing art work!
Why must so many spectacular looking mods for Half-Life 1, 2, Portal 1 & 2, etc. be decommissioned ,like this one?