<h1 align="center"> OpenSpeedy </h1> <img style="margin:0 auto" width=100 height=100 src="https://github.com/user-attachments/assets/a82ceda2-9b7b-41e4-96dc-cd250c9bd3ff"> </img> OpenSpeedy is an open-source and free game speed tool that helps you break frame rate limitations and provides a smoother, silkier gaming acceleration experience. <a href="https://www.fiofio.cn/en/">Offcial Website</a> <img src="https://api.visitorbadge.io/api/visitors?path=game1024.openspeedy&countColor=%234ecdc4"> <a href="https://github.com/game1024/OpenSpeedy/stargazers"> <img src="https://img.shields.io/github/stars/game1024/OpenSpeedy?style=for-the-badge&color=yellow" alt="GitHub Stars"> </a> <img src="https://img.shields.io/github/forks/game1024/OpenSpeedy?style=for-the-badge&color=8a2be2" alt="GitHub Forks"> <a href="https://github.com/game1024/OpenSpeedy/issues"> <img src="https://img.shields.io/github/issues-raw/game1024/OpenSpeedy?style=for-the-badge&label=Issues&color=orange" alt="Github Issues"> </a> <a href="https://github.com/game1024/OpenSpeedy/releases"> <img src="https://img.shields.io/github/downloads/game1024/OpenSpeedy/total?style=for-the-badge" alt="Downloads"> </a> <a href="https://github.com/game1024/OpenSpeedy/releases"> <img src="https://img.shields.io/github/v/release/game1024/OpenSpeedy?style=for-the-badge&color=brightgreen" alt="Version"> </a> <a href="https://github.com/game1024/OpenSpeedy/actions"> <img src="https://img.shields.io/github/actions/workflow/status/game1024/OpenSpeedy/ci.yml?style=for-the-badge" alt="Github Action"> </a> <a href="https://github.com/game1024/OpenSpeedy"> <img src="https://img.shields.io/badge/Platform-Windows-lightblue?style=for-the-badge" alt="Platform"> </a> <a href="https://github.com/game1024/OpenSpeedy/commits"> <img src="https://img.shields.io/github/commit-activity/m/game1024/OpenSpeedy?style=for-the-badge" alt="Commit Activity"> </a> <img src="https://img.shields.io/badge/language-C/C++-blue?style=for-the-badge"> <img src="https://img.shields.io/badge/License-GPLv3-green.svg?style=for-the-badge"> <a href="https://hellogithub.com/repository/975f473c56ad4369a1c30ac9aa5819e0" target="_blank"> <img src="https://abroad.hellogithub.com/v1/widgets/recommend.svg?rid=975f473c56ad4369a1c30ac9aa5819e0&claim_uid=kmUCncHJr9SpNV7&theme=neutral" alt="Featured｜HelloGitHub" style="width: 250px; height: 54px;" width="250" height="54" /> </a> <a href="https://github.com/game1024/OpenSpeedy/blob/master/docs/README_cn.md"> 简体中文 </a> · <a href="https://github.com/game1024/OpenSpeedy/blob/master/docs/README_ja.md"> 日本語 </a> · <a href="https://github.com/game1024/OpenSpeedy?tab=readme-ov-file#-openspeedy-"> English </a>

🚀 Features

Completely free and open-source
Easy-to-use interface
Customizable speed multiplier
Good compatibility with various game engines
Low system resource consumption
Supports accelerating both x86 and x64 processes
Non-invasive to the kernel: Ring3 level Hook, does not compromise the system kernel

💾 Installation

📦 Method1: Winget

# install 
winget install openspeedy

# open a new terminal, you can run openspeedy by following command
speedy

📥 Method2: Manual Download

Visit the Installation Page to download the latest version

💻 System Requirements

OS: Windows 10 or later
Platform: x86 (32-bit) and x64 (64-bit)

📝 Usage Instructions

Start OpenSpeedy
Launch the target game you want to speed up
<img src="https://github.com/user-attachments/assets/648e721d-9c3a-4d82-954c-19b16355d084" width="50%">
Select the game process, and adjust the speed multiplier in the OpenSpeedy interface
<img src="https://github.com/user-attachments/assets/9469aae9-8be0-4e40-884d-1fbea3206e73" width="50%">
The effect takes effect immediately. Compare the results below

🔧 Technical Principle

OpenSpeedy achieves game speed adjustment by hooking the following Windows system time functions:

| Function Name | Library | Description | |---------------|---------|-------------| | Sleep | user32.dll | Thread sleep | | SetTimer | user32.dll | Create message-based timer | | timeGetTime | winmm.dll | Get milliseconds elapsed since system startup | | GetTickCount | kernel32.dll | Get milliseconds elapsed since system startup | | GetTickCount64 | kernel32.dll | Get milliseconds elapsed since system startup (64-bit) | | QueryPerformanceCounter | kernel32.dll | High precision performance counter | | GetSystemTimeAsFileTime | kernel32.dll | Get system time | | GetSystemTimePreciseAsFileTime | kernel32.dll | Get high precision system time |

⚠️ Notes

This tool is for learning and research purposes only
Some online games may have anti-cheat systems. Using this tool may result in your account being banned
Excessive speeding up may cause the game physics engine to malfunction or crash
Not recommended for use in competitive online games
Open source product does not include digital signature and may be falsely flagged by antivirus software

🔄 Feedback

If you encounter any issues during use, feel free to provide feedback via:

FAQ - You can first check the wiki to locate the issue.
GitHub Issues - Submit issue reports

🎁 Buy me a coffee

If you find the OpenSpeedy project helpful, you can buy me a coffee~ ☕️

📜 License

OpenSpeedy is licensed under the GNU v3 License.

🙏 Acknowledgements

OpenSpeedy uses source code from the following projects. Thanks to the open-source community! If OpenSpeedy helps you, please give us a Star!

minhook: For API Hooking
Qt: GUI

Disclaimer: OpenSpeedy is intended for educational and research purposes only. Users assume all risks and responsibilities for using this software. The author is not responsible for any loss or legal liability resulting from the use of this software.

OpenSpeedy

Install / Use

README