Compare Half-Life 2: Episode One prices across trusted key stores and find the best deal. Developed by Valve. Published by Valve. Released on 6/1/2006. Available on PC, Linux. Genres: Action. Metacritic score: 87/100.

Four to five hours of tightly wound FPS that doubles down on Alyx Vance and the Gravity Gun, making every minute count even if there aren't that many of them.

My honest first reaction to Episode One was relief. After Half-Life 2 ended on one of the most abrupt cliff-hangers in FPS history, Valve delivered a follow-up that picks up the story seconds after Gordon Freeman survives the Citadel explosion, with Alyx at his side and a city on a countdown to total annihilation. It is a short game, no question, but it is one that knows exactly what it wants to be. The structure is straightforward: re-enter the crumbling Citadel to slow its reactor meltdown, then fight your way out of City 17 before the whole thing goes critical. What keeps it from feeling like a glorified corridor is how Valve rebuilt the experience around two specific tools. The Gravity Gun is your starting weapon this time instead of a crowbar, and the puzzles built around it are noticeably more inventive than anything in the base game. Plugging antlion burrow pits by hauling cars on top of them with the Gravity Gun, or snatching live grenades away from the new "zombine" enemies mid-charge, gives the physics engine actual mechanical weight rather than treating it as a party trick. The Combine soldiers also received upgraded AI, with new tactics like ducking under your line of fire during engagements, which keeps the combat from feeling familiar on repeat. Alyx Vance is the other pillar the game rests on, and the results are genuinely impressive for 2006 AI design. Valve explicitly programmed her to avoid repetitive lines and robotic behaviour, and it shows. She comments on what you are doing, reacts to the environment, and provides real combat support during firefights without needing to be babysat. Having her present for virtually the entire run transforms Episode One from a standard shooter into something closer to a co-operative experience, even though you are technically solo. Some players find her constant presence grating by the end, and that is a fair complaint, but for most of the runtime she elevates every scene she is in. The criticisms are real and they are not small. The runtime sits firmly at four to five hours, and the first half of the game leans heavily on puzzle pacing over action, which can frustrate players who showed up for the intense street battles that dominate the back half. The episode is also more linear than Half-Life 2, with fewer split paths to explore and more mandatory "wait while Alyx operates this terminal" interruptions. No new weapons are introduced either, which means you are working with a familiar toolkit throughout. Whether that bothers you depends on how much novelty you needed on top of a story continuation. One thing worth noting for buyers in 2024 and beyond: following Half-Life 2's 20th Anniversary Update, Episode One was merged into the base Half-Life 2 game and is accessible directly from its main menu. That changes the value calculation significantly. As a standalone chapter it was always a brief, premium-priced experience. As part of the broader Half-Life 2 package it is simply the next thing you play when the credits roll on the main game, and in that context it is essential. The HDR lighting, improved facial animation, and developer commentary mode still hold up as extras worth exploring on a second run. Alex, Scout Team

Half-Life 2: Episode One

Half-Life 2: Episode One

Jun 1, 2006Valve
GamerScout Says

Four to five hours of tightly wound FPS that doubles down on Alyx Vance and the Gravity Gun, making every minute count even if there aren't that many of them.

PCLinux
Steam Deck PlayableProtonDB Platinum
Best Price Available
€25.00
at Eneba
Lowest tracked: €25.00
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GamerScout Verdict

8.7/10

Essential for Half-Life 2 fans, especially now that it ships inside the base game, despite a runtime that ends just as the tension peaks.

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Price History

Lowest tracked
€25.005 Jun 2026
Current best
€25.00
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€23.00€24.33€25.67€27.005 Jun28 Jun22 Jul14 Aug6 Sept
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About Half-Life 2: Episode One

My honest first reaction to Episode One was relief. After Half-Life 2 ended on one of the most abrupt cliff-hangers in FPS history, Valve delivered a follow-up that picks up the story seconds after Gordon Freeman survives the Citadel explosion, with Alyx at his side and a city on a countdown to total annihilation. It is a short game, no question, but it is one that knows exactly what it wants to be. The structure is straightforward: re-enter the crumbling Citadel to slow its reactor meltdown, then fight your way out of City 17 before the whole thing goes critical. What keeps it from feeling like a glorified corridor is how Valve rebuilt the experience around two specific tools. The Gravity Gun is your starting weapon this time instead of a crowbar, and the puzzles built around it are noticeably more inventive than anything in the base game. Plugging antlion burrow pits by hauling cars on top of them with the Gravity Gun, or snatching live grenades away from the new "zombine" enemies mid-charge, gives the physics engine actual mechanical weight rather than treating it as a party trick. The Combine soldiers also received upgraded AI, with new tactics like ducking under your line of fire during engagements, which keeps the combat from feeling familiar on repeat. Alyx Vance is the other pillar the game rests on, and the results are genuinely impressive for 2006 AI design. Valve explicitly programmed her to avoid repetitive lines and robotic behaviour, and it shows. She comments on what you are doing, reacts to the environment, and provides real combat support during firefights without needing to be babysat. Having her present for virtually the entire run transforms Episode One from a standard shooter into something closer to a co-operative experience, even though you are technically solo. Some players find her constant presence grating by the end, and that is a fair complaint, but for most of the runtime she elevates every scene she is in. The criticisms are real and they are not small. The runtime sits firmly at four to five hours, and the first half of the game leans heavily on puzzle pacing over action, which can frustrate players who showed up for the intense street battles that dominate the back half. The episode is also more linear than Half-Life 2, with fewer split paths to explore and more mandatory "wait while Alyx operates this terminal" interruptions. No new weapons are introduced either, which means you are working with a familiar toolkit throughout. Whether that bothers you depends on how much novelty you needed on top of a story continuation. One thing worth noting for buyers in 2024 and beyond: following Half-Life 2's 20th Anniversary Update, Episode One was merged into the base Half-Life 2 game and is accessible directly from its main menu. That changes the value calculation significantly. As a standalone chapter it was always a brief, premium-priced experience. As part of the broader Half-Life 2 package it is simply the next thing you play when the credits roll on the main game, and in that context it is essential. The HDR lighting, improved facial animation, and developer commentary mode still hold up as extras worth exploring on a second run.

Alex
Alex · Scout Team

Catch-all

Tags

singleplayerachievementscontroller-supportcloud-savesGravity Gun PuzzlesAI CompanionEpisodicPhysics-Based CombatZombine EnemiesDeveloper CommentaryHDR LightingCombine AITightly Paced

System Requirements

Minimum

1.7 GHz Processor, 512MB RAM, DirectX® 8.1 level Graphics Card (Requires support for SSE), Windows® 7 (32/64-bit)/Vista/XP, Mouse, Keyboard, Internet Connection

Recommended

Pentium 4 processor (3.0…

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Reviews & Ratings

GamerScout
8.7/10
Metacritic
87

Game Info

Developer
Valve
Publisher
Valve
Release Date
Jun 1, 2006

Game Modes

singleplayer

Languages

Audio (9)
EnglishFrenchGermanItalianKoreanSpanish - Spain+3 more
Subtitles (18)
EnglishFrenchGermanItalianKoreanSpanish - Spain+12 more

Features

AchievementsController SupportCloud Saves

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Frequently asked questions about Half-Life 2: Episode One

How much does Half-Life 2: Episode One cost?

As of 6 September 2026, the cheapest in-stock offer for Half-Life 2: Episode One is €25.00 at Eneba, out of 1 live offers we track across verified key stores. Prices change daily — the table on this page is refreshed continuously.

Where can I buy Half-Life 2: Episode One cheapest?

The lowest in-stock price we track for Half-Life 2: Episode One is €25.00 at Eneba (6 September 2026). We compare 1 live offers from verified key stores — the full table with every store and its trust score is on this page.

What platforms is Half-Life 2: Episode One available on?

Half-Life 2: Episode One is available on PC, Linux.

When was Half-Life 2: Episode One released?

Half-Life 2: Episode One was released on 1 June 2006.

Who developed Half-Life 2: Episode One?

Half-Life 2: Episode One was developed by Valve.

Is Half-Life 2: Episode One worth buying?

Half-Life 2: Episode One holds a Metacritic score of 87/100, making it one of the standout Action titles. See the full reviews, ratings and how-long-to-beat times on this page to decide.