Released Jan 11, 2022
Early Access $17.99 Mostly Positive
Black One Blood Brothers
By Helios Studio
Followers
—
Reviews
1,387
Mostly Positive
Players yesterday
5
at the busiest moment
Owners
50K–100K
estimated
Steam data
Everything Steam lists for Black One Blood Brothers · record updated 5 minutes ago
Overview
App ID1621560
Release dateJan 11, 2022
Last change number39549031
Last record update5 minutes ago
App info
- App type
- Game
- Developer
- Helios Studio
- Publisher
- Helios Studio
- Steam profile
- Counts toward game count and achievement totals · checked Nov 1, 2025
- Website
- helios-studio.com
Platforms
Windows
64-bit
- Steam Deck
- Playable
Features
5
Single-playerSteam AchievementsSteam WorkshopIncludes level editorFamily Sharing
Patches
Builds
2| Build | Branch | Updated |
|---|---|---|
| 25577680 | public | Sep 28, 2026 |
| 20076125 | legacy_version | Feb 3, 2026 |
Packages & DLC
DLCs
1| ID | Name | Price (US) |
|---|---|---|
| 2975810 | Not on the store yet | — |
Depots
Depots
5| ID | Name | Systems | Size | Download | Manifest |
|---|---|---|---|---|---|
| 228988 | — shared from 228980 | Windows | — | — | — |
| 228989 | — shared from 228980 | Windows | — | — | — |
| 228990 | — shared from 228980 | Windows | — | — | — |
| 1621561 | — | Windows | 48.93 GB | 34.58 GB | 6341944256167766723 |
| 2975810 | — DLC 2975810 | Windows | — | — | — |
Branches
2| Branch | Build | Updated | Access |
|---|---|---|---|
| public | 25577680 | Sep 28, 2026 | Open |
| legacy_version Public default branch with old version | 20076125 | Feb 3, 2026 | Open |
Configuration
Install foldersteamapps/common/Black One Blood Brothers
Launch options
3| Executable | Arguments | Systems | Description |
|---|---|---|---|
| BOBB.exe | Windows · 64-bit | Play (DirectX 12 — Recommended) | |
| BOBB.exe | -d3d11 | Windows · 64-bit | Play (DirectX 11) |
| BOBB.exe | -vulkan | Windows · 64-bit | Play (Vulkan) |
Cloud saves
Space per player93.13 GB
Filesup to 5,000
Save locations1
| Root | Path | Pattern | Systems |
|---|---|---|---|
| WinAppDataLocal | Saved\SaveGames | *.sav | All |
Data from public Steam pages, updated daily; 1 day of history. Owner counts are estimates. LaunchRivals is not affiliated with Valve or Steam.