OCTOBER 10, 2007...
exciting, never-before-seen insight into the making of Portal!
Our Half-Life 25th anniversary documentary and subsequent Half-Life 2 20th anniversary documentary went so well that we decided to make yet another entry in the series.
It's about how what started as a small team of university students with a short demo, managed to impress the Valve CEO Gabe Newell so much that they were hired on the spot to make a full game at Valve!
Table of Contents
STEAM WORKSHOP SUPPORT
The Portal 20th Anniversary Update introduces Steam Workshop support, allowing players to create and share their own custom maps and mods.
The possibilities are endless, and the community has already created hundreds of new levels and challenges for you to enjoy.
Download them now and experience Portal like never before!
UPDATED GAME CONTENT
The Portal 20th Anniversary Update features 15 new challenge levels, new story elements, voice lines, Easter eggs, and hidden secrets.
We've also restored beta content and added new achievements and challenges for you to unlock.
Updated Graphics settings
The Portal 20th Anniversary Update features enhanced graphics with updated textures and models, improved lighting and shadow effects, and support for higher resolutions and widescreen displays.
Experience Portal like never before with stunning visuals and improved performance.
Before
After
Gamepad, Input, and Steam Deck Updates
The Portal 20th Anniversary Update adds support for modern controllers, improved mouse and keyboard controls, and customizable key bindings.
The game is now Steam Deck Verified and supports Steam Input for a seamless experience on the go.
bug fixes and change notes
Content
- Added Steam Workshop support
- Added 15 new challenge levels.
- Introduced new story elements and voice lines.
- New Easter eggs and hidden secrets.
- Restored beta content.
Rendering and Graphics
- Enhanced graphics with updated textures and models.
- Improved lighting and shadow effects.
- Support for higher resolutions and widescreen displays.
UI and Options
- Redesigned main menu and HUD for a modern look.
- Added new accessibility options.
- Improved in-game tutorials and hints.
Input
- Added support for modern controllers.
- Improved mouse and keyboard controls.
- Customizable key bindings.
Gameplay
- Refined physics and portal mechanics.
- Balanced difficulty for a smoother experience.
- New achievements and challenges.
General Map Updates
- Updated existing maps with new details and secrets.
- Improved performance and loading times.
Specific Map Updates
- Test Chamber 03: Fixed crash for modern Intel CPUs.
- Test Chamber 04: Added new puzzle elements.
- Test Chamber 09: Redesigned layout for better flow.
- Test Chamber 15: Enhanced visual effects and lighting.
Other
- Various bug fixes and performance improvements.
- Added new community-made content.
- Improved compatibility with modern systems.
- Steam Deck Verified.
- Added support for Steam Input.
Cake Added
,:/+/- /M/ .,-=;//;- .:/= ;MH/, ,=/+%$XH@MM#@: -$##@+$###@H@MMM#######H:. -/H# .,H@H@ X######@ -H#####@+- -+H###@X .,@##H; +XM##M/, =%@###@X;- X%- :M##########$. .:%M###@%: M##H, +H@@@$/-. ,;$M###@%, - M####M=,,---,.-%%H####M$: ,+@## @##################@/. :%H##@$- M###############H, ;HM##M$= #################. .=$M##M$= ################H..;XM##M$= .:+ M###################@%= =+@MH% @#################M/. =+H#X%= =+M###############M, ,/X#H+:, .;XM###########H= ,/X#H+:; .=+HM#######M+/+HM@+=. ,:/%XM####H/. ,.:=-.