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Mashups: Combine Two Games

Plan and build cross-game mashups, from porting content to running two games together

Stars
9,328
Licence
MIT
Files
2 files

What it does

This skill guides an AI agent through designing mods that merge two video games, such as bringing Minecraft mechanics into Skyrim or an enemy from one game into another. It helps the agent pick the lightest approach (copying content, running both games at once and passing data between them, or rebuilding part of a game), write down the data contract between the games, and define a test that proves the mashup works before building features. The file is a planning guide; the excerpt shown does not include executable scripts.

Great for

  • Modders who want to combine two games and need a structured plan before coding
  • Developers exploring cross-process game integration such as shared memory or frame bridges
  • Hobbyists who want to understand how viral AI-built game mashups are typically architected

Skip it if

  • Users who only want a simple game cheat or a single-game mod, since the workflow is designed for multi-engine mashups
  • Anyone wanting to distribute mashups that contain copyrighted game assets, because the skill itself says assets must come from the user's own install and not be copied into the mod
  • Beginners without modding experience, since the guidance assumes knowledge of engines, loaders, IPC and graphics APIs

Try asking

  • “Help me plan a mod that brings Minecraft blocks into Elden Ring as items.”
  • “Design the data contract between a Fabric mod and a Skyrim plugin that exchange entity positions.”
  • “Which mashup route fits bringing a skateboarding mechanic from one shooter into another?”
  • “Write the MODLOG entry and first-slice test plan for a Dark Souls enemy port.”
Step-by-step guide: how to use Mashups: Combine Two GamesInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 2 original files, the MIT licence and an attribution note.

    mashup-mods.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip mashup-mods.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip mashup-mods.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Start by stating exactly what from the guest game you need (behaviour, mechanic or look only), because that choice determines the simplest viable route.
  • Write the contract and the first-slice test before adding features, since the skill notes these projects fail by drifting rather than lacking code.
  • Check the referenced files in the repository, since much of the detailed guidance lives in them and not in SKILL.md alone.

What's inside

  • references/mashup-cases.md
  • SKILL.md

Redistributed unmodified from rehan-remade/universal-modder under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.