With the introduction of patch 1.5, Windows XP, Vista, and DirectX 9 support was removed. The new system requirements are as follows:
- Operating system: Windows 7/8/10.
- Processor (CPU): with two or more physical cores, and supporting SSE2.
- Random access memory (RAM): 2 GB.
- Video card: NVIDIA GeForce 8600, ATI Radeon HD 4550.
- Free space on hard disk: ~36 GB.
- Internet connection speed: 256 Kbit/s.