Mashups and mods for games you own · Updated
Left 4 Dead 2 on Melty
Melty starts mashups that use an owned copy of Left 4 Dead 2. Valve campaigns that mashup queries join to other owned shooters or sandboxes.
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
- Game
- Left 4 Dead 2
- Genre
- co-op FPS
- Where Melty expects the copy
- Steam / store page
How Melty uses Left 4 Dead 2
Valve campaigns that mashup queries join to other owned shooters or sandboxes.
Left 4 Dead 2 is a co-op FPS title. Melty is not a storefront for it. The app looks for a copy you already own, then installs mashup files and starts the game when you press Play.
You can still pair Left 4 Dead 2 with another owned game and publish the mashup with Claude Code or Codex.
Setup, safety, friends
Play downloads the mashup, installs what it needs, and launches. Uninstall restores the files Melty touched.
Multiplayer mashups mint an invite link. Uploads are checked for dangerous files.
FAQ
Does Melty include Left 4 Dead 2?
No. You need your own copy. Melty opens the store if Left 4 Dead 2 is missing.
Can I mash Left 4 Dead 2 with another game I own?
Yes. Melty's product line is "combine any game in your library and play with your friends."
What is a mashup?
A mod that joins games into one. In SkyCraft, you play Skyrim as a Minecraft player.
Do I need the games?
Yes. Mashups run on games you own. If you are missing one, Melty sends you to its store.
What does Play do?
It downloads the mashup, installs what it needs, and starts the game. Uninstalling puts every file back as it was.
Related pages
Free for Windows.