Extract .iso file with WinRAR or mount using DaemonToolsLite Run the installer and wait Done.
ABOUT THE GAME
GTFO is a hardcore 4 player cooperative first-person shooter, with a focus on team play and atmosphere. It features edge-of-your-seat suspense, team-based puzzle-solving and high-intensity combat.
Requires a 64-bit processor and operating system OS: Windows 7 64-Bit or later Processor: Intel Core i5 2500K or AMD equivalent Memory: 8 GB RAM Graphics: NVIDIA GeForce GTX 660 2 GB or AMD equivalent DirectX: Version 11 Network: Broadband Internet connection Storage: 15 GB available space