Mashups and mods for games you own · Updated
What the Melty Play button does
Play downloads the mashup, installs what it needs, and starts the game. That sentence is the product.
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
- Guide
- What Press Play does
In short
Play downloads the mashup, installs what it needs, and starts the game. That sentence is the product.
Steps
- 1 Click Play on a mashup card.
- 2 Melty fetches the mashup package.
- 3 It writes the files the mashup needs.
- 4 It starts the host game.
- 5 On uninstall, it reverts those files.
Facts that do not change
Melty is free. Mashups need owned games. Play installs and starts. Uninstall restores. Uploads are scanned. Claude Code and Codex can publish new mashups.
FAQ
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.
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.
Can I make my own?
Yes. Copy Melty’s instructions into Claude Code or Codex and say what you want. The agent builds it and publishes it.
Related pages
Free for Windows.