Half-Life 2: Episode One

Half-Life 2: Episode One

Valve · June 1, 2006 · FPS, Action, Sci-fi, Singleplayer, Story Rich

Buy the Half-Life 2: Episode One key for Steam from CJS CD Keys at $12.63 — the cheapest of 2 stores we compare.

PC
Overwhelmingly Positive96% · 31,29387Metacritic7playing now
Best price 42 Good deal
$12.63
lowest tracked $12.61
CJS CD Keys Buy at CJS CD Keys

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Cheapest Half-Life 2: Episode One keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

CJS CD Keys
CJS CD Keys
Standard Edition · Steam
$12.63
Buy
Eneba
Standard Edition · Steam
$28.01
Buy

Half-Life 2: Episode One price by region

Half-Life 2: Episode One costs £9.44 in the United Kingdom, $12.63 in the United States, $12.63 in Georgia (USD) and €25.00 in Europe (EUR) right now.

Cheapest Half-Life 2: Episode One offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Kingdom £9.44 — £9.44 1
United Statesyour region $12.63 — $12.63 2
Georgia (USD) $12.63 — $12.63 2
Europe (EUR) €25.00 — €25.00 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Trailers & screenshots

Watch the Half-Life 2: Episode One trailer →

About Half-Life 2: Episode One

✦ AI summary

Episode One continues the story after Half-Life 2's climactic events, following Alyx and the G-Man as you uncover what comes next for City 17 and beyond. The package includes the acclaimed single-player campaign plus two competitive multiplayer modes for intense tactical combat.

Half-Life 2 has sold over 4 million copies worldwide, and earned over 35 Game of the Year Awards. Episode One is the first in a series of games that reveal the aftermath of Half-Life 2 and launch a journey beyond City 17. Also features two multiplayer games. Half-Life 2 not required.

Half-Life 2: Episode One — game info

Platforms
Windows, Linux / SteamOS
Steam Deck
Playable
Player modes
Single-player
Controller
Full controller support
PC Game Pass
Not included

DLC & expansions

🎁 Complete the collection

Base game + 0 of 1 DLC at today's best prices (some DLC unpriced).

$12.63
to own everything

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

✦ AI summary

Players praise Episode One as a solid continuation of Half-Life 2 that maintains the original's atmosphere and delivers memorable moments, though some note it can be completed relatively quickly. The game is generally well-received for its engaging combat and story progression, with fans appreciating how it logically extends the events of the base game.

Recommended Sep 29, 2026
good
Recommended Sep 24, 2026
Rise and shine, Mr. Freeman.
Recommended Sep 19, 2026
Half-Life 2: Episode One serves as a focused, high-octane continuation that kicks off the episodic saga with a bang. Valve drastically upgraded the companion AI mechanics to create one of the most compelling duo dynamics in gaming history. Alyx feels like a genuine partner in combat, driving both the gameplay and emotional core of the adventure. While its short length, heavy reliance on dark claustrophobic corridors, and lack of brand-new weapons hold it back from matching the scale of its predecessor, its tight pacing and stellar combat loops make it a decent expansion. ⭐ ⭐ ⭐ ⭐ 4/5
Not recommended Sep 18, 2026
game ♥♥♥♥♥♥ sucks
Recommended Sep 17, 2026
ok
Recommended Sep 16, 2026
Fun game, pretty easy to complete

Community reviews

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