Portal

Portal

Developer(s)

Valve Corporation

Publisher(s)

Valve Corporation

Series

Portal series

Release date(s)

ExpandOctober 10, 2007

Genre(s)

Puzzle-platform

Engine

Source (Source 2013 Singleplayer)

Steam AppID

400

Written in

C++

Mod support

Yes

SDK

Source SDK
(See Portal level design)

System requirements

Win Vista, Win 7 or later
3.0 GHz CPU
1 GB RAM
5 GB disk space
DirectX 8 or 9 capable Graphics card

Steam Deck compatbility

Verified

Distribution

Retail, Steam

Official website

Official Website

Links

Steam page

ModDB page

Next game

Portal 2

Portal (2007) is a first-person puzzle video game. Taking place in the mysterious Aperture laboratories and set in the same universe as Half-Life, the game operates as a puzzle-based shooter, allowing you to create portals that link to one another on any flat and large enough surface.

The gameplay is similar to Narbacular Drop by Nuclear Monkey Software, an indie game that won the IGF 2006 Student Showcase. Members of the development team who created the game were hired by Valve in 2005.

A level expansion for Portal was later released in 2008 as Portal: Still Alive, which included new maps based on maps from the Portal: The Flash Version MapPack, which was an unofficial Portal mod with maps replicating Portal: The Flash Version in real Portal. These Portal: Still Alive levels would later be unofficially ported to the PC in mod form, and later would reappear in the Portal Companion Collection for the Nintendo Switch.

In 2022, Nvidia released Portal with RTX, a remastered version of Portal developed by NVIDIA Lightspeed Studios (who also co-developed Portal Companion Collection for Nintendo Switch, and previously ported Portal to NVIDIA Shield devices) which takes advantage of newer hardware and adds ray-tracing support, PBR textures, new high-poly models and much more.

Chapters

Portal Chapters
Testchamber 00	Testchamber 04	Testchamber 08	Testchamber 10
Testchamber 13	Testchamber 14	Testchamber 15	Testchamber 16
Testchamber 17	Testchamber 18	Testchamber 19

Content

Portal (portal)
Source 2013 shared (hl2)
Source shared (hl2)
Source 2013 Singleplayer engine branch

System Requirements

Windows Collapse

Windows
	Minimum	Recommended
Operating system (OS)	Windows Vista, Windows 7 or later
Processor (CPU)	1.7 GHz	Pentium 4 (3.0GHz), or Dual Core (2.0GHz+)
System memory (RAM)	1 GB	2 GB
Hard disk drive (HDD/SSD)	4 GB	5 GB
Video card (GPU)	NVIDIA GeForce 6 series, ATI Radeon X1600, Intel HD Graphics 3000 (with 128MB VRAM) Direct3D 9 with DirectX feature level 8.0	Full Direct3D 9 (DX9) compatible
Other	Note:The latest version is no longer compatible with XP since the 2022 Steam Deck update, user will need to obtain the previous versions of the game prior to the update in order to play. Note:Due to Steam dropped support on Windows Vista/XP, users need run the game without Steam by running the hl2.exe executable with -game portal.	Internet connection (for Steam features, such as Achievements)

Mac Expand

Trivia

Some of the screenshots on the Steam page are from prerelease versions of Portal.
On February 14, 2025, Valve released an update to Portal, which briefly upgraded the engine to newer version of Source 2013 SP used by Half-Life 2 (20th Anniversary Update), however this was quickly reverted due to a game-breaking bug that crashes the game, when the game tries to load the last map. It also broke the game UI.