Released Sep 13, 2022
$5.99 · −80% Very Positive
Isonzo
By BlackMill Games
Followers
—
Reviews
14,510
Very Positive
Players yesterday
149
at the busiest moment
Owners
200K–500K
estimated
Steam data
Everything Steam lists for Isonzo · record updated 9 hours ago
Overview
App ID1556790
Release dateSep 13, 2022
Last change number39323160
Last record update9 hours ago
App info
- App type
- Game
- Developer
- BlackMill Games
- Publisher
- BlackMill Games
- Steam profile
- Counts toward game count and achievement totals · checked Nov 1, 2025
- Franchise
- WW1 Game Series
- Technologies
- Unity detected
- Metacritic
- 73
- Website
- ww1gameseries.com/isonzo
Platforms
Windows
macOS
Linux
64-bit
- Steam Deck
- Playable
- Controller
- Partial support
Features
12
Single-playerMulti-playerPvPOnline PvPSteam AchievementsSteam CloudSteam Trading CardsPartial controller supportPlayStation controllersXbox controllersPlayStation controller BluetoothFamily Sharing
Related apps
Patches
Builds
1| Build | Branch | Updated |
|---|---|---|
| 22294740 | public | Mar 11, 2026 |
Packages & DLC
DLCs
15| ID | Name | Price (US) |
|---|---|---|
| 1815510 | Not on the store yet | — |
| 1815511 | Not on the store yet | — |
| 1815512 | Not on the store yet | — |
| 1815513 | Not on the store yet | — |
| 1815514 | Not on the store yet | — |
| 2128180 | Not on the store yet | — |
| 2197970 | Not on the store yet | — |
| 2214670 | Not on the store yet | — |
| 2214671 | Not on the store yet | — |
| 2542150 | Not on the store yet | — |
| 2542160 | Not on the store yet | — |
| 2719540 | Not on the store yet | — |
| 2719550 | Not on the store yet | — |
| 2753070 | Not on the store yet | — |
| 3253670 | Not on the store yet | — |
Depots
Depots
6| ID | Name | Systems | Size | Download | Manifest |
|---|---|---|---|---|---|
| 228989 | — shared from 228980 | Windows | — | — | — |
| 228990 | — shared from 228980 | Windows | — | — | — |
| 1556791 | — | Windows | 25.09 GB | 11.91 GB | 2767538477195694966 |
| 1556793 | — | macOS | 25.01 GB | 11.85 GB | 4456913356973437988 |
| 1556794 | — | Linux | 25.13 GB | 11.89 GB | 6689292090127597586 |
| 2128180 | — DLC 2128180 | All | 422.2 MB | 419.8 MB | 1474589007654349629 |
Branches
1| Branch | Build | Updated | Access |
|---|---|---|---|
| public | 22294740 | Mar 11, 2026 | Open |
Configuration
Install foldersteamapps/common/Isonzo
Launch options
3| Executable | Arguments | Systems | Description |
|---|---|---|---|
| Isonzo/Isonzo.exe | isonzo | Windows · 64-bit | |
| Isonzo/Isonzo | -force-vulkan | Linux · 64-bit | Launch |
| Isonzo/Isonzo.app/Contents/MacOS/Isonzo | macOS | Launch |
Cloud saves
Space per player9.5 MB
Filesup to 900
Save locations1
| Root | Path | Pattern | Systems |
|---|---|---|---|
| WinAppDataLocalLow | WW1 Game Series/Isonzo/Steam/{64BitSteamID} | SaveData_User.dat* | All |
Data from public Steam pages, updated daily; 1 day of history. Owner counts are estimates. LaunchRivals is not affiliated with Valve or Steam.