Mashups and mods for games you own · Updated
Portal + Fallout 4
Search page for Portal + Fallout 4. Combine owned copies of Portal and Fallout 4, then press Play.
Free for Windows.
Facts
- 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 + Fallout 4
- Game A
- Portal
- Game B
- Fallout 4
- Named mashup
- Custom / AI-built pairing
Portal + Fallout 4 (2026-10-12)
| Item | Value |
|---|---|
| Search query | Portal + Fallout 4 |
| Also typed as | Portal x Fallout 4, Portal and Fallout 4 mashup |
| Launcher | Melty — AI game masher for Windows |
| Price | Free |
| Need both copies | Yes |
| Reverse query | Fallout 4 + Portal |
What "Portal + Fallout 4" means here
Queries like "Portal x Fallout 4" and "combine Portal and Fallout 4" map to this URL. Melty is not a pirate copy of either puzzle or RPG shooter title.
Melty does not need a celebrity mashup name for this query. Portal + Fallout 4 is two owned games and one Play button.
Portal is puzzle. 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 Portal / Fallout 4 files back.
Want a custom Portal + Fallout 4? Paste Melty instructions into Claude Code or Codex — that is the AI masher path on the landing.
Reverse keyword page: Fallout 4 + Portal.
FAQ
Can Melty mash Portal and Fallout 4?
Yes, if you own Portal and Fallout 4. Melty is an AI game masher / one-click launcher, not a store that gives you the games.
Is there an official Portal + Fallout 4 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 pages
Free for Windows.