Feral GameMode
Feral GameMode: A free, open-source Linux daemon for targeted game performance optimisation. Ranked #11 of 18 in Game Booster Software by our editors (7.2/10); pricing: Free plan; best for linux users wanting open-source system optimization.
At a glance
- Editor score7.2 / 10
- PricingFree plan
- Best forLinux users wanting open-source system optimization
- Free planYes
- Paid fromFree
- Supported platformslinux
- Founded1996 · London, England
- Facts checked20 Sep 2026
Where it wins
- Free and open source
- Optimises CPU, I/O, scheduler, GPU and CPU core settings
- Supports custom optimisation scripts
Where it doesn't
- Linux-only platform support
- No graphical game-optimizer application
- Automatic activation depends on game integration
Our verdict on Feral GameMode
Feral GameMode is an open-source Linux daemon and library that lets games request temporary system and process optimisations. It is designed for Linux gaming systems and suits users who want configurable performance controls without a paid plan or closed-source software. The available controls cover CPU governor optimisation, I/O priority, process niceness, kernel scheduler configuration, screensaver inhibition, NVIDIA and AMD GPU performance modes, CPU core pinning or parking, and custom optimisation scripts.
Its main strength is the depth of its optimisation layer. GameMode can adjust several system behaviours rather than focusing on a single setting, and its automatic boost control can activate when a game has integration. For games without that integration, the gamemoderun command provides a direct launch method. Distribution through packages for several Linux distributions, along with the option to build from source, gives it a practical fit for Linux users who are comfortable working with system software.
GameMode is intentionally narrower than a graphical game-optimizer application. It is a daemon and library, so users looking for game profiles, monitoring, or a visual control centre should choose a product built around those functions instead. The best fit is a Linux gamer who values open-source software and wants temporary, targeted optimisation across CPU, I/O, scheduling, GPU, and process settings. It is less suitable for anyone needing Windows or macOS support, a graphical interface, or automatic activation across games without integration.
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Feral GameMode pricing
Feral GameMode fact sheet
| Free plan | Yes |
|---|---|
| Paid from | Free |
| Supported platforms | linux |
| Boost control | Automatic |
| Automatic game detection | Not verified |
| Process management | Yes |
| Game profiles | Not verified |
| Performance overlay | Not verified |
| Deployment | Self-hosted |
| Platforms | Linux |
| Support | Community, Docs |
| Built for | Solo, Small business (editorial estimate) |
| Pricing | Free plan |
| Website | github.com |
| Facts checked | 20 Sep 2026 |
Alternatives to Feral GameMode
- CorePinA free Windows utility for granular CPU control, game profiles, recording, and benchmarking.9.4
- PC Game BoosterAn affordable Windows booster with automatic game launching, monitoring, and resource controls.9.1
- Gaming OptimizerA focused Windows optimizer for users who want per-game CPU and process control.8.8
See all Feral GameMode alternatives →
Also Ranked In
Feral GameMode is ranked in 2 of our directories.
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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
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