Open-source alternatives to Gamemode

uperf is an Android performance tuning tool and Linux kernel parameter manager designed to optimize device responsiveness and battery life. It functions as a CPU affinity and scheduling manager, a hardware power profile controller, and a real-time system monitor that adjusts kernel parameters and CPU frequencies. The project distinguishes itself through real-time system monitoring of touchscreen input and frame rendering to trigger immediate performance boosts. It utilizes hardware performance profiling to apply pre-tuned configuration files tailored to specific hardware platforms, balancing

MangoHud is a Linux hardware monitor and performance overlay that displays real-time metrics and frame rates. It functions as a graphics API hook, intercepting Vulkan and OpenGL pipelines to render performance data directly onto the graphics buffer. The project serves as both a real-time monitor for CPU and GPU utilization, temperatures, and power draw, and a frametime data logger that records execution speed to disk for later benchmarking and analysis. Users can modify the overlay display, visual styles, and active metrics through configuration files, environment variables, or predefined pe

Paper is a high-performance server implementation for hosting multiplayer Minecraft games. It functions as a performance-oriented game engine designed to reduce resource usage and resolve mechanical inconsistencies in game logic. The project provides a platform for extending server logic and adding custom gameplay features through a dedicated plugin API. This allows for the development and integration of third-party extensions to add specialized capabilities to the server environment. The software covers several technical areas including server performance optimization for high-concurrency e

Proton GE Custom is a compatibility layer designed to execute Windows games on Linux by translating binary instructions and API calls. It focuses on improving game stability and performance through a Wine-based translation system. The project utilizes custom patches and per-game configuration overrides to resolve specific application crashes and glitches. It implements specialized media foundation patching to ensure stable playback of proprietary cinematic formats and adds support for High Dynamic Range output. The software covers a range of gaming optimizations, including raw input latency

Bottles is a Wine compatibility manager and prefix manager that provides a graphical interface for running Windows applications on Linux. It functions as a Windows application sandbox and dependency manager, organizing isolated environments to prevent dependency conflicts and protect the host operating system. The project acts as a Wine runner orchestrator, allowing users to download, install, and switch between different compatibility layers and graphics renderers. It distinguishes itself by using community-driven scripts for automated software installation and dependency management, alongsi

This project provides a custom rule set and configuration profiles for content processing tools. It consists of declarative rules and JSON-based configurations that define how a target application identifies and handles specific types of data. The system enables dynamic tool configuration by injecting external logic at runtime, removing the need for core system recompilation. These configurations use schema-validated rule sets to ensure structural integrity and prevent errors during processing. The project implements pattern-based data identification using regular expressions and a priority-

UniTask is a high-performance asynchronous task library designed specifically for the Unity game engine. It provides a specialized framework for managing background operations and complex game logic, enabling developers to utilize modern asynchronous patterns while maintaining consistent frame rates during high-frequency engine updates. The library distinguishes itself through a zero-allocation architecture that prioritizes memory efficiency. By utilizing struct-based task representations and an internal object pooling system, it significantly reduces garbage collection pressure compared to s

ZyperWinOptimize is a Windows system optimization tool that automates performance tuning by removing bloatware, disabling unnecessary services, and cleaning junk files to improve system responsiveness. It functions as a profile-driven configuration tool, storing user-selected optimization settings in a JSON file for consistent reapplication across sessions, and includes capabilities for Windows and Office activation via embedded product keys and command-line tools. The tool distinguishes itself through its comprehensive approach to system modification, combining registry tweaking, service sta

Linutil is a Rust-based system configuration toolbox designed to automate software installation, hardware setup, and security baseline enforcement across various Linux distributions. It functions as a high-performance utility for executing batch configuration jobs and managing system baselines through a terminal interface. The project provides a distribution-agnostic setup manager that allows users to configure hardware peripherals and install desktop environments across different Linux versions. It includes a specialized firewall configuration tool for applying standardized network traffic r

lsfg-vk is a Vulkan-based frame generation tool and graphics middleware designed to increase perceived frame rates in graphics applications. It implements a lossless scaling algorithm to insert generated frames between rendered ones, increasing motion smoothness without reducing image quality. The project features a dedicated programming interface for integrating frame generation logic into external applications and includes an application profile manager. This manager allows specific generation settings to be assigned to individual executables, automating configuration upon application start

Universal Android Debloater is a desktop utility designed to manage and remove pre-installed software from Android devices. By utilizing the Android Debug Bridge, the tool allows users to identify and disable or uninstall system applications on non-rooted devices to improve privacy, storage availability, and overall system performance. The software distinguishes itself through its ability to reconcile current device states against declarative configuration files, enabling the automated application of software removal profiles. It supports multi-instance management, allowing users to connect t

Decky Loader is an open-source plugin system that extends the Steam Deck's gaming mode interface with community-made plugins and customizations. It functions as a plugin loader that injects JavaScript plugins into the Steam Deck's web-based interface at runtime, enabling real-time appearance and behavior changes without leaving the active gaming session. The system combines a CORS-bypassing proxy layer that intercepts and modifies HTTP fetch requests from plugins to remove same-origin restrictions, with a Python-to-TypeScript bridge that exposes Python functions as callable TypeScript methods

Steam Play compatibility tool to run adventure games using native Linux ScummVM

Wine GUI using Zenity

Synchronize games from other platforms into your Steam library

Goverlay is an easy graphical interface to configure linux gaming applications

This project is a suite of system optimization tools for SteamOS designed to tune kernel memory parameters, manage swap space, and perform disk cleanup on handheld hardware. It provides a command-line interface for executing system tweaks and managing configurations without a graphical user interface. The toolset includes a kernel memory tuner for adjusting swappiness and page allocation, a swap space manager for creating and resizing virtual memory files, and a disk cleanup utility to remove orphaned shader caches and compatibility data. It also enables the relocation of game data and shader

DOSBox Staging is a modern continuation of DOSBox with advanced features and current development practices.

Steam Play compatibility tool to run DOS games using native Linux DOSBox

Suspend games and applications.

ScummVM main repository

This project is a custom firmware for the Flipper Zero that provides an embedded plugin ecosystem, a hardware pentesting toolkit, and a multi-protocol emulation layer. It modifies the device's operating system to include a Sub-GHz radio suite for expanded frequency range and the ability to build and deploy third-party applications directly onto the hardware. The firmware extends the device's native capabilities through a Sub-GHz radio suite that allows for frequency extension and signal capture beyond factory defaults. It implements specialized emulation for BadUSB and BLE keyboards and inclu

cmus is a terminal-based audio player that runs entirely within a terminal window, using the ncurses library to render its interface without any graphical toolkit. It is designed to play local music files and internet radio streams, with support for CUE sheet metadata that splits single audio files into logical tracks with correct timing, and gapless playback that eliminates audible pauses between consecutive tracks. The player distinguishes itself through a Vi-inspired incremental search interface that locates tracks and commands in real time as you type, and a tab-based workspace model that