Replica Team company

Replica: Chell was an exceptional test subject. She excelled in the tasks she was set and, most importantly, stayed alive. After she escaped the facility, a robot was sent to capture her. An unknown amount of time later, a new test subject has 'volunteered' to participate in the test. However, they have a feeling they have done this before...

Replica is a modification for Valve's Portal that aims to include over 25 new testchambers, a new take on the Portal story, new game mechanics, custom dialouge, behind-the-scenes areas, outside sections and bonus/challenge maps for re-playability. The mod also contains Creative Commons music, some original textures and custom models.