Grand Theft Auto IV (IVOSX)

Console

PC (Windows)

Project

IVOSX

Runs On

macOS

Version

2026.11, Nov 13, 2026

What It Adds

Widescreen - “ultrawide included, and in its own window or full screen.” · HD - “at any resolution,”

Made By

• calmerism

Safety Report

Malware Scan

Scanned with ClamAV 1.5.4 on Nov 13, 2026: no known malware in its download. Decomp Buddy only installs those exact files - if the project swaps one, it waits for a new scan.

Uploaded By

The project's owner

License

GNU General Public License v3.0

Account

On GitHub since January 2023

Install

Get Game

• Decomp BuddySets it up for you · needs the free app: Get Decomp Buddy
• Mac (Apple Silicon)IVOSX.dmg · 22 MB · 2026.11
• Source Code2026.11 · 1 MB

Downloads come from Decomp Buddy's own copy - the same files the app installs, scanned for malware. Most games still need your own copy of the original game to play, and the app sets that up for you.

The Project

Decomp Buddy never hosts or downloads the original game. It sets up IVOSX and tells you exactly which file of yours to drop in - then checks it's the right one. A ready-made plan is published for this one, so no AI key is needed. This is a community project: we check it, but we can't guarantee it.

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