Light Rail - Portal: Catalyst Teaser

The beam of concentrated light hums in the derelict Test Chamber, it’s very structure groaning with it’s supports surely to one day collapse, battered by the shockwaves of the Central AI’s destruction... Portal: Catalyst is a free mod currently being developed by B-Name Studios, a passionate group of Portal 2 modders wanting to create a brand new Portal experience for fans new and old alike. - Check out our page on ModDB! - - Join our Discord Server! - - Follow us on Twitter! -