Minimum System Requirements
Windows
OS:
Windows 7/8/10 Processor:
Intel Core i3-560 or AMD Phenom II X4 805 RAM:
4 GB RAM Video card:
NVIDIA GeForce GTX 650 or AMD Radeon HD 7750 Sound card:
DirectX compatible sound card Disk space:
20 GB available space 
MAC
Half-Life 2: Downfall 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
Half-Life 2: Downfall 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 10 Processor:
Intel Core i5-750 or AMD Phenom II X4 955 RAM:
8 GB RAM Video card:
NVIDIA GeForce GTX 760 or AMD Radeon R9 270 Sound card:
DirectX compatible sound card Disk space:
20 GB available space MAC
Half-Life 2: Downfall 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
Half-Life 2: Downfall 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 Half-Life 2: Downfall 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.
