The Orange Box: Portal Hints from UHS — Not Your Ordinary Walkthrough

General Tips and Information

Chapter 1: Testchamber 00
Chapter 2: Testchamber 04
Chapter 3: Testchamber 08
Chapter 4: Testchamber 10
Chapter 5: Testchamber 13
Chapter 6: Testchamber 14
Chapter 7: Testchamber 15
Chapter 8: Testchamber 16
Chapter 9: Testchamber 17
Chapter 10: Testchamber 18
Chapter 11: Testchamber 19

Bonus Maps: Challenge Maps
Bonus Maps: Advanced Chambers

Achievements

About these hints / Contact their author

Related Hints:

Half-Life 2
Half-Life 2: Episode One
Portal 2
The Orange Box: Half-Life 2: Episode Two

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Half-Life Hints. Not your ordinary walkthrough.
The Elder Scrolls IV: Oblivion Hints. Not your ordinary walkthrough.
The Elder Scrolls V: Skyrim Hints. Not your ordinary walkthrough.

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