Portal 2 Mapping

If Portal 2 was a Rhythm Game (Synchronized Music Map)

Portal 2 Perpetual Testing Initiative

Why are most popular Portal 2 maps so bad?

"Mend" | Perpetual Testing | Portal 2 Community Maps & Mods

How To Make Better Puzzles

Minecraft map 168 (Portal 2 in Minecraft)

hazzardskeleton

"Metaphysical" | Perpetual Testing | Portal 2 Community Maps & Mods

"Floor 34" | Perpetual Testing | Portal 2 Community Maps & Mods

"Discharge" | Perpetual Testing | Portal 2 Community Maps & Mods

Foursight #1 | Portal 2 Co-op w/ Chairman Rice

The Process Of Making Portal 2's Levels

Portal 2's paradoxical self-powering setups

"Triple Laser, but something's odd" | Perpetual Testing | Portal 2 Community Maps & Mods

Combining all Portal 1 maps into one (part 1)

Juko

"Kentics" | Perpetual Testing | Portal 2 Community Maps & Mods

Portal 2 custom map | What am I playing?

"Dimensional Rotation" | Perpetual Testing | Portal 2 Community Maps & Mods

Portal's Weird Beta Maps

How can "No Elements" maps in Portal 2 be so hard?