Game
App 34010
Alpha Protocol™
Obsidian Entertainment · published by SEGA · released Jun 1, 2010
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.
Price
$19.99
US store
Reviews
83%
3,447 · Very Positive
Playing now
5
sampled 15h ago
24h peak
5
all-time seen 9
Followers
—
Steam community hub
Owners (est.)
~207K
103K – 331K
YouTube activity
0
videos · 30 d28
creators9K
views · 1 yTwitch activity
1
avg viewers · 30 d73
hours watched · 30 d1
streamers · 30 dProduct info
from Steam's PICS · read 3d ago- Change number
- 39,987,305
- Public build
- 19,366 · — (—)
- Operating systems
- windows
- Architecture
- —
- Install size
- 12 GB
- Install folder
Alpha Protocol- Controller support
- —
- Metacritic
- 73
- Homepage
- www.alphaprotocol.com
- Release state
- —
- Community
- hub
Steam Deck
PlayableTested Aug 21, 2025 on build 19,366
- !Controller glyphs do not match deck device
- !Display output has nonblocking issues
- !Gamepad not enabled by default
- ✓Default controller config fully functional
- ✓Interface text is legible
- ✓Default configuration is performant
- iExternal controllers not supported primary player
Branches · 1
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 19,366 | — |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 19,366 | public | — | 3d ago |
Depots · 8
content of the public branch| Depot | Name | OS | Language | DLC / shared | Size | Download | Manifest |
|---|---|---|---|---|---|---|---|
| 34011 | all | 12 GB | — | 3331164244238024281 | |||
| 34012 | all | french | 7.2 MB | — | 2764998667663499458 | ||
| 34013 | all | german | 7.2 MB | — | 4095315018260114147 | ||
| 34014 | all | italian | 7.2 MB | — | 6130909299341476903 | ||
| 34015 | all | spanish | 7.2 MB | — | 4340567755658314518 | ||
| 34016 | all | russian | 17 MB | — | 1437051963943083667 | ||
| 34017 | all | czech | 17 MB | — | 99889102737751254 | ||
| 34018 | all | polish | 18 MB | — | 3655045886372367800 |
Launch options · 1
| Executable | OS | Description |
|---|---|---|
APLauncher.exe |
all |
Languages · 8
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| Czech | ✓ | — | — |
| French | ✓ | — | — |
| German | ✓ | — | — |
| Polish | ✓ | — | — |
| English | ✓ | — | — |
| Italian | ✓ | — | — |
| Russian | ✓ | — | — |
| Spanish | ✓ | — | — |
Packages · 1
all packages| Sub | Name | Billing | Price |
|---|---|---|---|
| 4437 | Alpha Protocol | Store | $19.99 |
Bundles · 0
all bundlesNot part of any bundle we know.
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
No patch notes seen yet for this game.