Portal 2 Extra Survival Map

Underground from Portal 2 ported/converted into a campaign and survival maps. All content is packed into a single VPK so you don't need Portal 2.

Humanoid GlaDOS enters the L4D world in search for revenge on Chell. UPDATED - See changelog for more info. Miku model © MIKUiqnw0 Remodeling & textures © Boroko Use DAP for faster downloads. 'Don't run the VPK! Place it in the 'addon...

Why? Well, why not. Replaces both the skin and the sound of the grenade launcher with something more...science-y. Be sure to check out the vid for the full effects, will be tweaking it in my spare time. After all, everything can be i...

The Portal Characters have finally made it to L4D2 my friends. Now go out and show those infected what a Mute, a Bipolor Super computer, and two free spirited robots can bring to the game!!!!

Reskins the race car to completely white with 4 unique colored Aperture science logos (about 5 Aperture science logos, 4 unique colors)

Abandoned campaign. Will be deleted soon.

A few chapters from Half-Life's first expansion adapted into a campaign Starting in the Black Mesa infirmary where Shephard wakes up in chapter 2 Ends just before entering Xen in chapter 6

Original addon: https://steamcommunity.com/sharedfiles/filedetails/?id=122456481 Francis port: https://steamcommunity.com/sharedfiles/filedetails/?id=829636420