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SPECIFICTION
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OpenGameBoost

github.com

Windows
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Spec score 7.2 #12 of 18 in Game Booster Software

What it is

OpenGameBoost is a free, open-source gaming optimizer for 64-bit Windows 10 and Windows 11. Game Mode can suspend Explorer, browsers, and game launchers to free CPU and RAM, then resume them instantly when deactivated. The application can flush unused process memory, switch to the High Performance power plan, change network settings by disabling Nagle’s algorithm and NetBIOS, and adjust game GPU scheduling priority through registry changes. Automatic detection can activate Game Mode when supported games launch; the listed detection catalog contains 18 games, including Call of Duty, Fortnite, Apex Legends, Counter-Strike 2, Valorant, League of Legends, and Minecraft. Supported launchers include Steam, Epic, Battle.net, EA, Ubisoft Connect, and GOG. Supported browsers include Chrome, Firefox, Edge, Opera, and Brave. Administrator privileges are required for full functionality. Downloads come from the Releases page; source setup requires Python 3.9 or newer. Changes are described as reversible.

Spec sheet

Purpose
OpenGameBoost describes itself as an open-source gaming optimizer for Windows 10/11.Read 30 Sep 2026 · github.com
License
The project is distributed under the MIT License.Read 30 Sep 2026 · github.com
Automatic detection
Auto Game Detection can activate Game Mode when supported games launch.Read 30 Sep 2026 · github.com
Download
The README directs users to download OpenGameBoost.exe from the Releases page and run it as Administrator.Read 30 Sep 2026 · github.com
Game detection
The README lists 18 games for automatic detection, including Fortnite, Counter-Strike 2, Valorant, and Minecraft.Read 30 Sep 2026 · github.com
Game Mode
Game Mode can suspend Explorer, browsers, and game launchers to free CPU and RAM.Read 30 Sep 2026 · github.com
GPU tweaks
GPU priority tweaks set scheduling priority for games through registry changes.Read 30 Sep 2026 · github.com
License and limits
The project uses the MIT License, modifies Windows system settings, says changes are reversible, and provides no responsibility for resulting issues.Read 30 Sep 2026 · github.com
Memory optimization
Memory optimization flushes unused memory from processes using the Windows EmptyWorkingSet API.Read 30 Sep 2026 · github.com
Network optimization
Network optimization disables Nagle's algorithm and NetBIOS for reduced latency.Read 30 Sep 2026 · github.com
Permissions
Administrator privileges are required for process suspension and system modifications.Read 30 Sep 2026 · github.com
Power optimization
The application switches to the High Performance power plan and restores the original plan when deactivated.Read 30 Sep 2026 · github.com
Process controls
Game Mode can suspend Explorer, browsers, and game launchers, then resume them when Game Mode is deactivated.Read 30 Sep 2026 · github.com
Process handling
Processes are suspended rather than killed and resume instantly when Game Mode is deactivated.Read 30 Sep 2026 · github.com
Release requirement
The v1.0.1 release notes say the application requires administrator privileges for full functionality.Read 30 Sep 2026 · github.com
Release status
The v1.0.1 release is marked pre-release and requires administrator privileges for full functionality.Read 30 Sep 2026 · github.com
Requirements
The software requires 64-bit Windows 10 or Windows 11 and administrator privileges; running from source requires Python 3.9 or newer.Read 30 Sep 2026 · github.com
Source setup
Running from source requires Python 3.9 or later.Read 30 Sep 2026 · github.com
Supported apps
Supported launchers include Steam, Epic, Battle.net, EA, Ubisoft Connect, and GOG; supported browsers include Chrome, Firefox, Edge, Opera, and Brave.Read 30 Sep 2026 · github.com
Supported games
Auto detection lists 18 games including Call of Duty, Fortnite, Apex Legends, Counter-Strike 2, Valorant, League of Legends, and Minecraft.Read 30 Sep 2026 · github.com
Supported OS
The project requires 64-bit Windows 10 or Windows 11.Read 30 Sep 2026 · github.com
System changes
The README says system changes are reversible and advises users to use the software at their own risk.Read 30 Sep 2026 · github.com
System optimizations
Features include memory optimization, High Performance power plan switching, network tweaks, GPU priority tweaks, and automatic game detection.Read 30 Sep 2026 · github.com
Transparency
The project says it has no hidden functionality and no telemetry.Read 30 Sep 2026 · github.com

Strong points and limits

Strong points

  • Free and open source
  • Automatic detection for listed games
  • Suspends processes instead of killing them
  • Restores the original power plan
  • No hidden functionality or telemetry

Limits

  • Windows 10/11 only
  • Administrator privileges required
  • No game profiles
  • No performance overlay

Who it suits

OpenGameBoost suits Windows gamers who want manual or automatic process and system optimization and are comfortable granting administrator access.

Verdict

OpenGameBoost provides reversible Windows-focused optimization with automatic game detection and process suspension. Its pre-release status, administrator requirement, and system changes should be considered before use.

Where Specifiction places it

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