Which game requires the highest specifications to play?

There are a lot:
Middle Earth II - Shadow of Mordor:

OS: 64-bit: Win 7, Win 8
Processor: Intel Core i7-3770, 3.4 GHz | AMD FX-8350, 4.0 GHz
Memory: 8 GB RAM
Graphics: NVIDIA GeForce GTX 660 | AMD Radeon HD 7950
DirectX: Version 11
Network: Broadband Internet connection
Hard Drive: 40 GB available space

GTA V:
Recommended System Requirements:

OS: Windows 8.1 64 Bit, Windows 8 64 Bit, Windows 7 64 Bit Service Pack 1
Processor: Intel Core i5 3470 @ 3.2GHZ (4 CPUs) / AMD X8 FX-8350 @ 4GHZ (8 CPUs)
Memory: 8GB
Video Card: NVIDIA GTX 660 2GB / AMD HD7870 2GB
Sound Card: 100% DirectX 10 compatible
HDD Space: 65GB
DVD Drive

Far Cry 5
Recommended Requirements
CPU: Intel Core i7-4770 @ 3.4 GHz | AMD Ryzen 5 1600 @ 3.2 GHz or equivalent
CPU SPEED: Info
RAM: 8 GB
OS: Windows 7 SP1, Windows 8.1, Windows 10 (64-bit versions only)
VIDEO CARD: NVIDIA GeForce GTX 970 or AMD R9 290X (4GB VRAM with Shader Model 5.0 or better)