Minimum System Requirements
Windows
OS:
Windows XP/Vista Processor:
Intel Pentium D (Dual Core) 2.8GHz or AMD Athlon 64 3500+ RAM:
1 GB RAM Video card:
NVIDIA GeForce 7600 GT or ATI Radeon X800 Sound card:
DirectX 9.0c compatible sound card Disk space:
5.1 GB available space 
MAC
Guitar Hero III: Legends of Rock is not officially supported on macOS. However, some users have managed to run the game using Windows emulation software or by installing Windows on a separate partition via Boot Camp
Linux
Guitar Hero III: Legends of Rock does not have an official Linux version. Players have used compatibility layers like Steam Play's Proton or Wine to run the game on Linux systems, but performance and compatibility can vary
Recommended System Requirements
Windows
OS:
Windows XP/Vista Processor:
Intel Core 2 Duo 2.4GHz or AMD Athlon Dual Core 4400+ RAM:
2 GB RAM Video card:
NVIDIA GeForce 8800 GT or ATI Radeon HD 2900 Sound card:
DirectX 9.0c compatible sound card Disk space:
5.1 GB available space MAC
Guitar Hero III: Legends of Rock is not officially supported on macOS. However, some users have managed to run the game using Windows emulation software or by installing Windows on a separate partition via Boot Camp
Linux
Guitar Hero III: Legends of Rock does not have an official Linux version. Players have used compatibility layers like Steam Play's Proton or Wine to run the game on Linux systems, but performance and compatibility can vary
We recommend playing Guitar Hero III: Legends of Rock on a Windows PC that meets or exceeds the recommended system requirements. If you're trying to play on a Mac or Linux, be prepared for potential technical issues and performance changes.
