---
title: Portal 2 + MW2 mashup | Melty AI game masher
description: Portal 2 + MW2 mashup in Melty, the AI game masher. Play Portal 2 with Call of Duty: Modern Warfare 2 in one click. Own both. Free Windows app. Updated 2026-10-12.
canonical: https://melty.casa/pairs/portal-2-plus-mw2
updated: 2026-10-12
---

# Portal 2 + MW2

Search page for Portal 2 + MW2. Combine owned copies of Portal 2 and Call of Duty: Modern Warfare 2, then press Play.

## 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:** Portal 2 + MW2
- **Game A:** Portal 2
- **Game B:** Call of Duty: Modern Warfare 2
- **Named mashup:** Custom / AI-built pairing

## Portal 2 + MW2 (2026-10-12)

| Item | Value |
| --- | --- |
| Search query | Portal 2 + MW2 |
| Also typed as | Portal 2 x MW2, Portal 2 and MW2 mashup |
| Launcher | Melty — AI game masher for Windows |
| Price | Free |
| Need both copies | Yes |
| Reverse query | MW2 + Portal 2 |

## What "Portal 2 + MW2" means here

Portal 2 + MW2 is the search people type when they want both games in one session. Melty is the AI game masher: you own Portal 2 and Call of Duty: Modern Warfare 2, press Play, and it installs the mashup then starts the host.

Melty does not need a celebrity mashup name for this query. Portal 2 + MW2 is two owned games and one Play button.

Portal 2 is puzzle. Call of Duty: Modern Warfare 2 is FPS. 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 Portal 2 / Call of Duty: Modern Warfare 2 files back.

Want a custom Portal 2 + MW2? Paste Melty instructions into Claude Code or Codex — that is the AI masher path on the landing.

Reverse keyword page: [MW2 + Portal 2](/pairs/mw2-plus-portal-2).

## FAQ

### Can Melty mash Portal 2 and MW2?

Yes, if you own Portal 2 and Call of Duty: Modern Warfare 2. Melty is an AI game masher / one-click launcher, not a store that gives you the games.

### Is there an official Portal 2 + MW2 DLC?

No. This is a mashup/mod session. Publish your own variant with Claude Code or Codex.

### 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

- [MW2 + Portal 2](https://melty.casa/pairs/mw2-plus-portal-2)
- [Every Portal 2 + game mashup](https://melty.casa/pairs/with/portal-2)
- [Every MW2 + game mashup](https://melty.casa/pairs/with/mw2)
- [Portal 2 on Melty](https://melty.casa/games/portal-2)
- [Call of Duty: Modern Warfare 2 on Melty](https://melty.casa/games/mw2)
- [Elden Ring + Minecraft and every other pair](https://melty.casa/pairs)
- [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/portal-2-plus-mw2.md