Recommended:

OS: Windows® 7 64-bit / Windows® 8 64-bit / Windows® 8.1 64-bit / Windows® 10 64-bit
Processor: Intel® Core™ i5-4670K @3.4 GHz / AMD FX-8350 @4.0 GHz
Memory: 8 GB RAM
Graphics: NVIDIA® GeForce® GTX 780 / AMD Radeon™ R9 290 (2GB VRAM)
DirectX: Version 11
Network: Broadband Internet connection
Storage: 10 GB available space
Sound Card: DirectX® compatible
Additional Notes: Laptop versions of graphics cards may work but are NOT officially supported. Windows-compatible keyboards, mouse, optional controller (Xbox 360 Controller for Windows recommended)

Dead Island: Riptide Definitive Edition screenshots