Gamma Energy visits the Aperture Science East facility, built after GLaDOS gained sentience. The goal was to create a facility where GLaDOS' research could be examined and tested without harm to employees or other people who actually... mattered, without her knowledge. Pick up a prototype Portal Device and try not to die.

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Gamma Energy Mac Install Script

Gamma Energy Mac Install Script

Patch 1 comment

Valve still doesn't really support Steam on OSX, no matter how much they've said otherwise. This hack fixes it.

Gamma Energy v1.1 (ZIP version)

Gamma Energy v1.1 (ZIP version)

Full Version 1 comment

Here's Version One Point One as .zip archive - A few bug fixes and new maps. Let's pretend it's three weeks ago, eh?

Gamma Energy v1.1

Gamma Energy v1.1

Full Version 0 comments

Here's Version One Point One as .7z archive - A few bug fixes and new maps. Let's pretend it's three weeks ago, eh?

Gamma Energy v1.0 (ZIP version)

Gamma Energy v1.0 (ZIP version)

Full Version 8 comments

Some people don't know what to do with a .7z, so here's the full content as a significantly larger .zip archive. This version contains the EXACT SAME...

Gamma Energy v1.0

Gamma Energy v1.0

Full Version 9 comments

Here's the mod as a 7Z archive. A ZIP version is coming soon. Windows users: extract and put the gamma_energy folder in your steam/steamapps/sourcemods...

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Portal
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Portal
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Gamma_Energy
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