Main article: Portal: Prelude
Pages in category "Portal: Prelude chambers"
The following 46 pages are in this category, out of 46 total.
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- Portal: Prelude Complex's Visit
- Portal: Prelude Final Battle
- Portal: Prelude GLaDOS' Boot
- Portal: Prelude Morality Core's Quest
- Portal: Prelude Test Chamber 00
- Portal: Prelude Test Chamber 01
- Portal: Prelude Test Chamber 02
- Portal: Prelude Test Chamber 03
- Portal: Prelude Test Chamber 03 (Bonus)
- Portal: Prelude Test Chamber 04
- Portal: Prelude Test Chamber 04 (Bonus)
- Portal: Prelude Test Chamber 05
- Portal: Prelude Test Chamber 05 (Advanced)
- Portal: Prelude Test Chamber 05 (Bonus)
- Portal: Prelude Test Chamber 06
- Portal: Prelude Test Chamber 07
- Portal: Prelude Test Chamber 07 (Bonus)
- Portal: Prelude Test Chamber 08
- Portal: Prelude Test Chamber 08 (Bonus)
- Portal: Prelude Test Chamber 09
- Portal: Prelude Test Chamber 09 (Advanced)
- Portal: Prelude Test Chamber 09 (Bonus)
- Portal: Prelude Test Chamber 10
- Portal: Prelude Test Chamber 10 (Bonus)
- Portal: Prelude Test Chamber 11
- Portal: Prelude Test Chamber 11 (Bonus)
- Portal: Prelude Test Chamber 12
- Portal: Prelude Test Chamber 12 (Advanced)
- Portal: Prelude Test Chamber 12 (Bonus)
- Portal: Prelude Test Chamber 13
- Portal: Prelude Test Chamber 13 (Bonus)
- Portal: Prelude Test Chamber 14
- Portal: Prelude Test Chamber 14 (Advanced)
- Portal: Prelude Test Chamber 14 (Bonus)
- Portal: Prelude Test Chamber 15
- Portal: Prelude Test Chamber 15 (Bonus)
- Portal: Prelude Test Chamber 16
- Portal: Prelude Test Chamber 16 (Bonus)
- Portal: Prelude Test Chamber 17
- Portal: Prelude Test Chamber 17 (Advanced)
- Portal: Prelude Test Chamber 17 (Bonus)
- Portal: Prelude Test Chamber 18
- Portal: Prelude Test Chamber 18 (Bonus)
- Portal: Prelude Test Chamber 19
- Portal: Prelude Test Chamber 19 (Advanced)
- Portal: Prelude Test Chamber 19 (Bonus)