The Steam client automatically detects, downloads, and applies patches in the background. You can verify your version by right-clicking the game, selecting Properties , and looking under the Updates or Local Files tab.
If you compare the original 1.0.37.exe with the 1.5.80.exe using a binary analysis tool, here’s what engineers would find:
This executable file is a cumulative patch designed to take the PC version of Horizon Forbidden West Complete Edition from its launch version (1.0.37) to version . It is most commonly distributed through ElAmigos repacks, which provided this as a single, convenient installer for users seeking a major performance and feature upgrade without downloading the entire game again. ElAmigos released the updated game on March 23, 2024 , which was then further updated via this cumulative package to version 1.5.80.
The journey of Aloy through the perilous Frontier has been consistently polished since its launch on PC. Among the most transformative updates released for the PC version of Horizon Forbidden West Complete Edition are those covering the jump from the early 1.0 series (around version 1.0.37) to the major 1.5.80.0 update released in mid-2024.
Beyond the major graphical features, 1.5.80 is packed with quality-of-life improvements:
Horizon Forbidden West Update 1.0.37 - 1.5.80.exe: Ultimate Performance & FSR 3.1 Guide
Horizon Forbidden West Complete Edition 1.5.80.0 Patch Notes
Introduces a Native Anti-Aliasing option that provides superior image sharpening over standard TAA without requiring spatial upscaling.