The universal donor of game mod loaders.
O⁻ is a cross-game, cross-DLL proxy mod injection system that works by masquerading as system DLLs like dinput8.dll, xinput1_4.dll, or dxgi.dll. Compatible with hundreds of Windows games.
Just like the universal blood donor, O⁻ is accepted everywhere — by any game that loads a system DLL. It injects your mods silently, reliably, and without modifying the game's files.
- Supports multiple entrypoint DLLs
- Shared logging and mod loading core
- Transparent DLL proxying (calls forwarded to system DLL)
- Designed for injectionless modding
- Build or download the generated DLL (e.g.,
dinput8.dllor another variant). - Place it in the game's executable directory.
- Launch the game — your mod code runs automatically.
- Check
o-neg.logfor debug info.
dinput8.dllxinput1_4.dlldxgi.dll(coming soon)
MIT
Made with blood, sweat, and breakpoints. 🩸