A collection of custom cooperative test chambers made by SunnyOst. Made exclusively mostly with PeTI editor, some with extended item limit. Wide range of difficulty(Easy/Medium/Hard*. Pretty wide, eh? #livingtothefullest). For more info about maps, read th

Private collection

A testing course based around speed and timing. The chambers aren't all that long or complicated.

A collection of tests that glados abandoned.

Tutti i miei test di Portal2 qui dentro!

My series of maps that are similar in style and difficulty. Several hours of work in each map to make sure they are working properly.

Labs 4 Fun & Reflection