You can now merge any two games you own into one

Game storyline

This video isn’t focused on a traditional game storyline. Instead, it explains a new Steam-related “game merging” tool/service called Melty that combines two games into one playable mashup.

How Melty works (gameplay concept)

• You select two games you already own on Steam.
• Melty mashes them together into one combined game.
• You click play, and it:
  • Installs everything
  • Starts the merged game automatically
  • Lets you play with friends
• When you’re finished, uninstalling restores all files exactly to their original state.

Key features / workflow

• One-click mashups from games you already own on Steam
• Automatic install + launch for the merged result
• Reversible changes: uninstalling returns files to their prior configuration
• If a mashup doesn’t exist yet:
  • You can provide your mashup idea to Claude Code
  • Tell it what you want
  • It builds and publishes the requested mashup

Strategies / tips mentioned

• Make sure you own both games you want to merge.
• Use it on Windows only (currently the only supported platform).
• If you can’t find the mashup you want, generate it via Claude Code by pasting Melty’s instructions and specifying your desired combination.

Notable mashups referenced

• Super Mario Ring
• Portal Life
• Skate Warfare
• Elden Craft

Origin / context

The idea is tied to an earlier viral mashup example: someone (not a developer) put Minecraft inside Elden Ring, reportedly drawing 22 million views.

Melty is described as backed by Y Combinator.

Gamers / sources featured

• Y Combinator
• Claude Code (Claude)
• Mentioned individuals: “a guy who’s not even a developer” (not named)
• No specific gamer names beyond the references above.