Portal
Officially Portal (franchise)
GENRE-DEFINING FIRST-PERSON PUZZLE game — Valve, released OCTOBER 10, 2007. Test-subject CHELL uses PORTAL GUN to create linked entry/exit portals through Aperture Science testing chambers overseen by rogue AI GLaDOS. PORTAL 2 (2011) expanded to 4-6h campaign + 2-player co-op mode. Iconic 'THE CAKE IS A LIE' meme + Jonathan Coulton's 'Still Alive' song. Universally acclaimed (~95 Metacritic both games) — considered greatest puzzle game of all time.
What is Portal?
Portal is REVOLUTIONARY first-person puzzle game franchise from VALVE CORPORATION. ORIGIN: PORTAL released OCTOBER 10, 2007 as part of THE ORANGE BOX bundle (with Half-Life 2 + Episodes + Team Fortress 2) — considered greatest game bundle ever. Based on DIGIPEN student game NARBACULAR DROP (2005); Valve hired the team + gave them Half-Life 2 assets to build Portal. PROTAGONIST: silent-protagonist CHELL, human test subject at APERTURE SCIENCE ENRICHMENT CENTER (fictional 1950s-era research facility outside Cleveland). PORTAL GUN (technically Aperture Science Handheld Portal Device / ASHPD) creates two linked portals on any WHITE SURFACE — enter one, exit the other. MOMENTUM PRESERVED through portals ('speedy thing goes in, speedy thing comes out' — GLaDOS). PUZZLES: 19 test chambers involving cubes, buttons, energy pellets, high energy pellets, sentry turrets, portal placement, momentum conservation ('flinging'). ANTAGONIST: GLaDOS (Genetic Lifeform and Disk Operating System) — passive-aggressive AI overseer with iconic monotone voice by ELLEN McLAIN + cutting sarcasm ('The cake is a lie' — anti-motivational message scratched into wall by previous test subject). ESCAPE sequence in final third breaks out of test chambers into ruined facility; player defeats GLaDOS. ENDING SONG 'STILL ALIVE' by JONATHAN COULTON became cultural phenomenon. PORTAL 2 released APRIL 19, 2011 — massive expansion: 8-9 hour single-player + 4-6 hour CO-OP campaign (2 players controlling robots ATLAS + P-body). New mechanics: LIGHT BRIDGES, EXCURSION FUNNELS (tractor beams), REPULSION/PROPULSION GEL (jump-pad + speed-boost paint), REDIRECTION LASERS, AERIAL FAITH PLATES. Characters expanded: WHEATLEY (personality core, voiced by STEPHEN MERCHANT), CAVE JOHNSON (Aperture founder, voiced by J.K. SIMMONS, 1950s-60s flashback narration). Story reveals APERTURE HISTORY spanning 60 years + Chell's mysterious past. UNIVERSALLY ACCLAIMED — 95 Metacritic; Game of the Year 2011 (multiple outlets). Sold 12M+ copies across Portal + Portal 2. CULTURAL IMPACT: 'THE CAKE IS A LIE' one of internet's earliest gaming memes; 'STILL ALIVE' song essential 2007-era gaming culture; puzzle design philosophy INFLUENCED entire genre (The Witness, Antichamber, The Talos Principle, Superliminal). LEGACY: Portal Reloaded (fan mod adding time travel), Portal Stories: Mel (fan campaign), PORTAL: REVOLUTION (2024 fan-made prequel campaign, official Valve support), PORTAL WITH RTX (2022 Nvidia raytraced remaster). Portal 3 remains gaming's second-most-wanted unreleased sequel after Half-Life 3.
Quick facts
Category
Video Games
Type
Individual
Players
1–2
Duration
~480 min
Where played
indoor
Field / court
PC/Mac/Linux (Steam) + PS3/PS4 + Xbox 360/One/Series
Country of origin
🇺🇸 United States
Estimated origin
October 10, 2007 (Portal 1); April 19, 2011 (Portal 2)
Olympic
No
Popularity
global
How it works
Objective
Navigate test chambers using the Portal Gun to solve spatial puzzles, escape Aperture Science, and eventually confront GLaDOS.
Rules
Basic rules
Fire BLUE portal (LMB) + ORANGE portal (RMB) onto white surfaces
Non-white surfaces reject portal placement; some surfaces are indestructible walls.
ENTER one portal to EXIT the other — momentum preserved
Falling into ground portal + landing surface portal on high ceiling = fly upward (portal flinging).
PLACE weighted CUBES on BUTTONS to open doors, lower lifts, activate mechanisms
Companion Cube (Portal 1) heart-decorated variant.
AVOID sentry TURRETS (topple to disable) + laser fields + Aperture Science HIGH ENERGY PELLETS
Portal 1 threats; Portal 2 adds thermal + spiky floors.
USE gels (Portal 2): BLUE = repulsion gel (bounce), ORANGE = propulsion gel (speed boost), WHITE (Conversion gel) makes surfaces portalable
Combine with portals for complex puzzle solutions.
USE excursion funnels + light bridges + aerial faith plates (Portal 2) for advanced traversal
Chapters 6-9 combine all mechanics.
TWO-PLAYER CO-OP (Portal 2): synchronize portals + hold buttons + use gestures to communicate
40 test chambers requiring coordination.
Scoring
No score — narrative campaign with challenge modes tracking portal count, step count, and completion time per chamber.
| Action | Points |
|---|---|
| Chapters completed (Portal 1: 19 chambers) | N/A — completion-based |
| Chapters completed (Portal 2 SP: 9 chapters, ~40 chambers) | N/A |
| Co-op courses completed (Portal 2: 6 courses, 40 chambers) | N/A |
| Advanced Challenge modes: least portals, least steps, least time | 3-tier medals (bronze/silver/gold) per chamber |
| Achievements (Portal 1: 15; Portal 2: 51) | Steam achievements |
| Speedrun categories: any%, no OOB (out-of-bounds), 100% | Portal 1 any% WR sub-8 min (glitched), sub-14 min (glitchless) |
Win condition · Complete all test chambers + defeat/escape final boss encounter. Chell escapes Aperture Science in both game endings.
Playing area
Called
PC/Mac/Linux (Steam) + PS3/PS4 + Xbox 360/One/Series
Dimensions
Standard monitor 1920x1080+; controller or KB+M
Aperture Science Enrichment Center: 19 test chambers (Portal 1) + 40+ chambers across 9 chapters (Portal 2) + 40 co-op chambers.
Equipment
PC via Steam ($10 Portal, $10 Portal 2, often $2-5 in sales)
Both games run on any 10-year-old hardware.
Console versions (PS3/PS4 via PS Store, Xbox 360 Game Pass sometimes)
Console versions of Orange Box exist for Portal 1.
Portal Gun (Aperture Science Handheld Portal Device / ASHPD)
In-game weapon; creates blue + orange portals on white surfaces.
Companion Cube (Weighted Cube variant)
Iconic pink-hearted cube; incinerated in famous emotional test chamber sequence.
Long Fall Boots
Chell's leg braces that negate fall damage — enables high-momentum puzzles.
Strategies
PORTAL FLINGING: fall through ground portal → land through ceiling portal → shoot momentum forward
Core Portal 1 traversal + speedrun technique.
PLAN PORTAL PLACEMENTS BEFORE FIRING — anticipate momentum vectors
Puzzles unsolvable if you fire portals reactively.
PORTAL 2 GEL COMBOS: repulsion gel + speed-boost gel + strategic portals = solve complex puzzles quickly
White gel makes non-portalable surfaces portalable.
CO-OP: use gesture wheel + ping system to coordinate; both players carry cubes to activate multiple buttons
'Divide and conquer' rooms; 'sync' portal placements.
AVANCED CHALLENGE MEDALS: least portals + least steps + least time — different optimal solutions each
Speed medals != portal medals; different strategies needed.
SPEEDRUN: study portal-tricks.com + SourceRuns for save-glitch, portal-save-glitch, momentum tech
Sub-8 min any% requires 100+ hours of practice.
Terminology
- Chell
- Silent-protagonist test subject; canonically Portuguese-American.
- GLaDOS
- Genetic Lifeform and Disk Operating System; sarcastic AI overseer (Ellen McLain).
- Aperture Science
- Fictional research corporation testing Chell; rival to Half-Life's Black Mesa.
- Portal Gun / ASHPD
- Aperture Science Handheld Portal Device; creates blue + orange portals.
- Companion Cube
- Heart-decorated weighted cube; incinerated in Portal 1 emotional test.
- The Cake Is a Lie
- Anti-motivational graffiti in Portal 1 (early gaming meme).
- Wheatley
- Bumbling personality core who helps Chell escape in Portal 2 (Stephen Merchant).
- Cave Johnson
- Deceased Aperture founder heard via pre-recorded messages in Portal 2 (J.K. Simmons).
- Long Fall Boots
- Chell's leg braces enabling unlimited fall height without damage.
- Still Alive
- Iconic Portal 1 ending song by Jonathan Coulton (sung by GLaDOS).
- Want You Gone
- Portal 2 ending song by Jonathan Coulton (sung by GLaDOS to Chell).
Major competitions
Games Done Quick speedrun events (frequent Portal categories)
biannual · worldwide (livestreamed) · since 2010
Portal community mapping contests (annual)
annual · worldwide · since 2011
Portal 2 Puzzle Maker leaderboards (fastest solve times per chamber)
ongoing · worldwide · since 2012
Where it is played
Governing bodies
Valve Corporation (developer/publisher)
Founded 1996 · Bellevue, WA, USA
Official site ↗Speedrun.com Portal community
Founded 2014 · USA
Official site ↗Portal Mapping Community (Hammer editor + Portal 2 Puzzle Maker)
Founded 2007 · worldwide
Famous names & records
Famous athletes
- Ellen McLain (voice of GLaDOS) — iconic AI performance
- Stephen Merchant (voice of Wheatley in Portal 2)
- J.K. Simmons (voice of Cave Johnson in Portal 2)
- Jonathan Coulton (musician) — Wrote 'Still Alive' + 'Want You Gone'
- Erik Wolpaw + Chet Faliszek (Portal 2 writers)
- SourceRuns team — Portal + Portal 2 speedrunning community
- msushiman (speedrunner) — Portal 2 WR holder
- Portal Reloaded + Portal Stories: Mel mod authors (community heroes)
Learn this sport
beginner
- 1
Play Portal 1 first (3-4 hours) — establishes mechanics + narrative
Original 2007 game still holds up completely.
- 2
Then Portal 2 single-player campaign (8-9 hours) — expands mechanics
Story continuation + backstory reveals.
- 3
Try Portal 2 CO-OP with a friend (4-6 hours) — completely separate story
Best co-op puzzle experience in gaming.
intermediate
- 1
Complete ADVANCED CHALLENGE MODES for all chambers
Bronze medals achievable; silver requires optimization; gold needs mastery.
- 2
Play fan campaigns: Portal Stories: Mel + Portal Reloaded + Portal: Revolution
Free mods with Half-Life-quality writing + puzzles.
- 3
Try PORTAL 2 PUZZLE MAKER — build + share custom test chambers
Community has made 500,000+ custom chambers.
advanced
- 1
Attempt SPEEDRUN — Portal 1 any% (sub-14 min glitchless / sub-8 with glitches)
portal-tricks.com is definitive resource.
- 2
Try HARD DIFFICULTY custom maps: 'Rexaura', 'Blue Portals', 'Portal: Prelude'
Puzzles harder than official campaigns.
- 3
Build custom Portal 2 test chambers using HAMMER EDITOR (Source SDK)
Community-standard for original chamber design.
Frequently asked
Do I need to play Portal 1 before Portal 2?+
STRONGLY RECOMMENDED. Portal 1 (~3-4 hours) establishes CHELL, GLaDOS, and Aperture Science + delivers massive final act. Portal 2's story CONTINUES DIRECTLY — you'll miss significant narrative + character development jokes if skipped. Both games <$10 each; often bundled. Play in order: PORTAL 1 → PORTAL 2 single-player → PORTAL 2 co-op.
What is Portal's connection to Half-Life?+
SHARED UNIVERSE ('Half-Life universe'). Aperture Science and Black Mesa are rival scientific corporations (Portal + Half-Life). Portal 2 references BLACK MESA + shows a defeat GLaDOS timeline. Half-Life 2: Episode Two contains ARG-style references to Portal via Combine. G-Man appears briefly in early Portal 1 test chambers (Advanced Chamber 17). Chell may be daughter of BOREALIS crew (implied in Portal 2 lore). Half-Life 3/Episode 3 was rumored to involve Portal characters — never confirmed as HL3 unreleased.
Will there be Portal 3?+
NEVER OFFICIALLY CONFIRMED. Valve declined to make Portal 3 despite Portal 2's massive commercial success. Erik Wolpaw + Chet Faliszek have left Valve. GABE NEWELL made vague comments 2019-2023 about wanting to return to single-player. PORTAL WITH RTX (2022) and community mods (Portal: Revolution 2024) fill the void. Fan project APERTURE TAG + PORTAL STORIES: MEL are considered spiritual continuations. Portal 3 sits alongside Half-Life 3 as Valve's most-wanted sequel that may never come.
Sources & provenance
- Wikipedia — Portal (video game)— Wikipedia
- Valve Corporation Portal page— Valve
- Portal Wiki (Combine OverWiki)— Portal Wiki community