---
title: GTA V + Fallout 4 mashup | Melty AI game masher
description: GTA V + Fallout 4 mashup in Melty, the AI game masher. Play Grand Theft Auto V with Fallout 4 in one click. Own both. Free Windows app. Updated 2026-10-12.
canonical: https://melty.casa/pairs/gta-v-plus-fallout-4
updated: 2026-10-12
---

# GTA V + Fallout 4

Search page for GTA V + Fallout 4. Commonwealth settlements mashed with a modern city sandbox.

## Facts (2026-10-12)

- **Product:** Melty desktop app
- **Price:** Free
- **Platform:** Windows
- **Publisher:** Stella Montis Inc.
- **Requires owned games:** Yes. Missing titles open their store.
- **Last reviewed:** 2026-10-12
- **Query:** GTA V + Fallout 4
- **Game A:** Grand Theft Auto V
- **Game B:** Fallout 4
- **Named mashup:** Fallout 4 + GTA V

## GTA V + Fallout 4 (2026-10-12)

| Item | Value |
| --- | --- |
| Search query | GTA V + Fallout 4 |
| Also typed as | GTA V x Fallout 4, GTA V and Fallout 4 mashup |
| Launcher | Melty — AI game masher for Windows |
| Price | Free |
| Need both copies | Yes |
| Reverse query | Fallout 4 + GTA V |

## What "GTA V + Fallout 4" means here

Use Claude Code or Codex with Melty instructions if you want a custom GTA V / Fallout 4 variant. The agent builds it; Melty scans the upload and lets friends join from a link.

Melty already names this pairing as Fallout 4 + GTA V. Commonwealth settlements mashed with a modern city sandbox.

Grand Theft Auto V is open world. Fallout 4 is RPG shooter. Melty starts the mashup on Windows. Uninstall restores files. Multiplayer mashups mint an invite link.

## Play, friends, AI

Press Play. Melty downloads the mashup, installs files, and starts the host. Uninstall puts Grand Theft Auto V / Fallout 4 files back.

Want a custom GTA V + Fallout 4? Paste Melty instructions into Claude Code or Codex — that is the AI masher path on the landing.

Reverse keyword page: [Fallout 4 + GTA V](/pairs/fallout-4-plus-gta-v).

## FAQ

### Can Melty mash GTA V and Fallout 4?

Yes, if you own Grand Theft Auto V and Fallout 4. Melty is an AI game masher / one-click launcher, not a store that gives you the games.

### Is there an official GTA V + Fallout 4 DLC?

No. This is a mashup/mod session. Fallout 4 + GTA V is Melty's name for this pair.

### What does Play do?

It downloads the mashup, installs what it needs, and starts the game. Uninstalling puts every file back as it was.

### Can I play with friends?

Yes, on multiplayer mashups. Press Play to get an invite link, then keep it private, share it, or go public.

### Is Melty safe?

Every upload is checked for dangerous files. If a mashup looks wrong, report it from its page.

## Related

- [Fallout 4 + GTA V](https://melty.casa/pairs/fallout-4-plus-gta-v)
- [Every GTA V + game mashup](https://melty.casa/pairs/with/gta-v)
- [Every Fallout 4 + game mashup](https://melty.casa/pairs/with/fallout-4)
- [Grand Theft Auto V on Melty](https://melty.casa/games/gta-v)
- [Fallout 4 on Melty](https://melty.casa/games/fallout-4)
- [Fallout 4 + GTA V: Fallout 4 + Grand Theft Auto V](https://melty.casa/mashups/fallout-gta)
- [AI masher, AI game mixer, AI game merging websites](https://melty.casa/ai)

## Download

Free Windows app: [Download Melty](https://melty.casa/download)

Markdown mirror: https://melty.casa/pairs/gta-v-plus-fallout-4.md