Released Jun 1, 2010 $19.99 Very Positive Counts toward your Steam games

Alpha Protocol™

By Obsidian Entertainment · published by SEGA

RPG Stealth Choices Matter ActionEspionageMultiple Endings Third Person Character Customization SingleplayerStory RichThird-Person ShooterModern

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Followers —

Reviews 3,436 Very Positive

Players yesterday 10 at the busiest moment

Owners 500K–1M estimated

Alpha Protocol™ is a game tagged RPG, Stealth and Choices Matter by Obsidian Entertainment, released Jun 1, 2010. It has 3,436 Steam reviews (Very Positive). It has an estimated 500K–1M owners on Steam. The Steam games most like it include Demonicon, BorderZone and Hero must die. again.

Loyalty carries a price and no one knows this more than agent Michael Thorton. A talented young agent cast out by his government, Thorton is the only one with the information needed to stop an impending international catastrophe.

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<a href="https://launchrivals.com/games/34010-alpha-protocol"><img src="https://launchrivals.com/games/34010/badge.png" alt="Alpha Protocol™ launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/34010-alpha-protocol"><img src="https://launchrivals.com/games/34010/badge.png?theme=light" alt="Alpha Protocol™ launch date" width="320" height="84"></a>

Demonicon 68% match · RPG, Choices Matter, Action
BorderZone 68% match · RPG, Action, Action RPG
Hero must die. again 68% match · RPG, Choices Matter, Multiple Endings
Mass Effect 2 (2010) Edition 67% match · RPG, Choices Matter, Action
The World II: Hunting BOSS 67% match · RPG, Action
Cube Creator X 66% match · RPG, Action
Max’s Adventures: Christmas Edition 66% match · RPG, Choices Matter, Action
Partisan 66% match · RPG, Stealth, Action
Summoner 66% match · RPG, Action, Third Person
CHROME SWEAT 66% match · RPG, Stealth, Choices Matter

Steam data

Everything Steam lists for Alpha Protocol™ · record updated 16 hours ago

Steam store

Overview

App ID34010

Release dateJun 1, 2010Early Access Jan 1, 1970

Last change number39987305

Last record update16 hours ago

App type: Game
Developer: Obsidian Entertainment
Publisher: SEGA
Steam profile: Counts toward game count and achievement totals · checked Nov 1, 2025
Metacritic: 73
Website: alphaprotocol.com

Language	Interface	Full audio	Subtitles
English	Yes
French	Yes
German	Yes
Italian	Yes
Spanish - Spain	Yes
Czech	Yes
Polish	Yes
Russian	Yes

Windows

Steam Deck: Playable

Single-playerFamily Sharing

Prices

Price · US$19.99

On sale0 of 39regions right now

Lowest seen · US$19.99Oct 24, 2026

Checked13 hours agoin 39 regions

South Korea₩KRW

Every price change is kept from Oct 24, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
19366	public	Oct 24, 2026

Packages & DLC

ID	Name	Games	Price (US)
4437	Alpha Protocol	1	$19.99

Depots

ID	Name	Systems	Size	Download	Manifest
34011	—	All	11.15 GB	—	3331164244238024281
34012	— French	All	6.8 MB	—	2764998667663499458
34013	— German	All	6.9 MB	—	4095315018260114147
34014	— Italian	All	6.8 MB	—	6130909299341476903
34015	— Spanish	All	6.9 MB	—	4340567755658314518
34016	— Russian	All	15.7 MB	—	1437051963943083667
34017	— Czech	All	16.4 MB	—	99889102737751254
34018	— Polish	All	17.4 MB	—	3655045886372367800

Branch	Build	Updated	Access
public	19366	—	Open

Configuration

Install foldersteamapps/common/Alpha Protocol

Executable	Arguments	Systems	Description
APLauncher.exe		All

Screenshots

Update history

Oct 25, 2026 · 22:49 #39987305
- appid removed

Data from public Steam pages, updated daily; 2 days of history. Owner counts are estimates. LaunchRivals is not affiliated with Valve or Steam.

Alpha Protocol™

About Alpha Protocol™

Steam data

Overview

App info

Languages

Platforms

Features

Prices

South Korea₩KRW

Americas 10

Europe 5

CIS 3

Asia-Pacific 14

Middle East & Africa 7

Patches

Builds

Packages & DLC

Packages

Depots

Depots

Branches

Configuration

Launch options

Screenshots

Update history

Changes to the Steam record