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Leaked Portal 2005 Beta | Origins of the Beta Files | Comparing Beta maps to the Final Game's maps
Portal Beta 2005 & More 2006 Content
Portal Dev Test Map
Portal 2: Early Animation Tests
Half-Life 2: 2017 LEAK - Valve Developer Test Maps
[PORTAL BETA] Lab_lvl3 (chamber 16) with commentary
New Portal 2 Beta DISCOVERED - The Core Hub Era
The FIRST Portal 2 BETA LEAK! - A Quick Dissection
Valve's First Attempts at 'Harder' Portal Test Chambers
Why are most popular Portal 2 maps so bad
The History of Portal
Expert Insights
Data is compiled from public records and verified media reports.
Last Updated: August 15, 2026
Summary
For 2026, Portal Beta Developer Test Maps remains one of the most searched-for creator profiles. Check back for the newest reports.
Disclaimer: Disclaimer: All Verified Registry logs and creator system metrics are compiled from publicly accessible data, development records, and digital index testing.
![[PORTAL BETA] Lab_lvl3 (chamber 16) with commentary](https://i.ytimg.com/vi/7oP0v4suWk8/mqdefault.jpg)
