Camden12343
no edit summary
21:09
+212
Headquarter8302
completed
23:43
−10
Aperture Science Inovators
Added other 'Portal Advanced Chambers' to see others section.
13:37
+202
HansonKerman
→Walkthrough
01:19
−19
Wendyly32
Walkthrough found step-by-step
03:41
+1,444
GeminiViRiS
Added achievements
21:51
+262
Added more info
22:54
+537
WindPower
Created page with "{{stub}} {{Chamber infobox | title = Test Chamber 16 (Advanced) | map = testchmb_a_11_advanced.bsp | number = 16 | total = 19 | screenshot = Porta..."
19:03
+486
