Portal 2
 
Community maps. For science.
Welcome to Aperture Laboratories, home of the Perpetual Testing Initiative. Easily create, share and play test chambers authored by and for the Portal 2 community. Do your part! Contribute to Science!
Containing item: "The Way Forward is Down"
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The Highly Confounding Halolz Testing Initiative for Gentlemanly Portal Placers
Collection by: StacMaster-S
The official collection of Halolz community test chambers! Are you a Halolz regular? Submit your levels to our Steam group today! http://steamcommunity.com/groups/halolz-portal
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