Aperture Leaks

A work-in-progress mashup of Half-Life 2 and Portal 2. You still wake up on the train into City 17, but the portal gun is in your hands from the first moment control begins, and a small Aperture test floor is built into the station opening.

In this first slice

• The Half-Life 2 opening at the train station, plus one level transition.
• The portal gun from the start, and it follows you through the transition.
• Blue and orange portals: you and physics props travel through and keep momentum.
• Propulsion (speed), repulsion (bounce) and conversion gels.
• Faith plates, excursion funnels, cubes and floor buttons.
• A laser emitter, lens cube, catcher and relay.
• Portal 2 sentries that acquire, fire and can be knocked out.
• An emancipation grill that resets your portals.

What it is not yet

• Not the full Half-Life 2 campaign: this release covers the opening station and one transition, with the Aperture mechanics placed there for testing.
• Hard-light bridges and through-portal views are not in this version.

Both games are required: Half-Life 2 is the host, and Portal 2 supplies its models, textures, sounds and particles from your own install. No Valve content is included in the download; the addon reads it from the installed games. Original code is MIT.