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What is this?
OpenSpeedy is an open-source game speed controller for Windows: you pick a running game's process, set a speed multiplier, and the change takes effect immediately.
OpenSpeedy is an open-source game speed controller for Windows: you pick a running game's process, set a speed multiplier, and the change takes effect immediately.Is it a mod I install into my games, or a separate app?A separate desktop app — you launch OpenSpeedy first, run the game, then select the game's process and set the speed multiplier in the OpenSpeedy window.
A separate desktop app — you launch OpenSpeedy first, run the game, then select the game's process and set the speed multiplier in the OpenSpeedy window.Do I need to install anything else to run it?No — Windows 10+ is all an everyday user needs. Node.js 18+, Rust, CMake and Visual Studio are only required if you build it from source.
No — Windows 10+ is all an everyday user needs. Node.js 18+, Rust, CMake and Visual Studio are only required if you build it from source.Is it safe to use in online games?Not really — some online games have anti-cheat, and using a speed modifier there may get your account banned; the author advises against competitive online games.
Not really — some online games have anti-cheat, and using a speed modifier there may get your account banned; the author advises against competitive online games.Does it run on macOS or Linux too, or Windows only?Windows only — it requires Windows 10 or later — but it handles both 32-bit (x86) and 64-bit (x64) game processes.
Windows only — it requires Windows 10 or later — but it handles both 32-bit (x86) and 64-bit (x64) game processes.How does a separate app actually change a game's speed?It hooks the Windows time functions games rely on — Sleep, SetTimer, timeGetTime, GetTickCount, QueryPerformanceCounter and others — at Ring-3 level, so the game's internal clock runs faster without any kernel intrusion.
It hooks the Windows time functions games rely on — Sleep, SetTimer, timeGetTime, GetTickCount, QueryPerformanceCounter and others — at Ring-3 level, so the game's internal clock runs faster without any kernel intrusion.Any other risks besides anti-cheat bans?Excessive speed can glitch or crash a game's physics engine, and since the open-source builds carry no digital signature, antivirus software may flag them as false positives. The project is explicitly framed as educational and research software.
Excessive speed can glitch or crash a game's physics engine, and since the open-source builds carry no digital signature, antivirus software may flag them as false positives. The project is explicitly framed as educational and research software.What are similar projects?CnC_Remastered_Collection, benilla, CircuitLordVRModInstaller, luanti, Game-Cheats-Manager, skate-3-rust-engine, Mindustry, exodium
CnC_Remastered_Collection, benilla, CircuitLordVRModInstaller, luanti, Game-Cheats-Manager, skate-3-rust-engine, Mindustry, exodium