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!
Browsing: Collections
Containing item: "The Way Forward is Down"
Sort by:  Top Rated All Time
Showing 1-1 of 1 entries
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
Per page: 9 18 30