Game fusion: the guide to uniting two games into one

Two games, one playable world. This guide explains what a game fusion really is, how it works, what types exist, and how to install it safely — with free zips and French guides.

  • Fusion de jeux
  • Mods crossover
  • Gratuit
  • Sans inscription
Fallout 3Fallout: New VegasVS

What is a game fusion?

Une fusion de jeux (or video fusion) is a project by modders that brings together two different games in one single game. When played, the two universes become one: a single hero, a single save, a single launch. It's not about running two games at once in two windows; it's about fusing them into a single experience.

Concretely, a fusion project takes the files of both original games, which you must own, legally purchased, and combines them. For example, a fusion can replay Fallout 3's campaign in Fallout: New Vegas's engine, with the latter's technical improvements applied to the former. Another project recreates Morrowind's universe inside the Oblivion engine. In both cas, tu n'as qu'un seul jeu à lancer.

These projects are made by fans, voluntarily, using your own copy of the games. They're free, and PlayPadHub gathers them with a zip and a French guide for each.

How does a game fusion work?

A fusion works by relying on the files of the two games you already own. Depending on the project type, the mechanics change slightly:

  • Synchronized dual launch : two Steam games are launched at once by a script, then their windows are placed side by side. No file is modified.
  • Conversion : a game's data (world, quests, characters) is imported into another game's engine, which displays and plays them.
  • Mod ou modpack : especially on Minecraft, a mod adds crossover content, a modpack groups several compatible mods.
  • Pack de ressources : it changes the game's appearance to bring the two universes closer, without touching the gameplay.

In every case, the common point is the same: you launch a single game, and enjoy both merged universes. Your save stays separate from the originals, which remain untouched.

The types of fusions, in detail

Synchronized dual launch
Two Steam games launched together by a script, windows arranged automatically. Ideal for playing two linked games without modifying anything.
Conversion totale
An entire game recreated in another's engine. Example: Morrowind recreated in Oblivion, or both Fallout campaigns as a single hero.
Mod Minecraft
A Modrinth project that adds crossover content to Minecraft Java. Requires a mod loader like Fabric or Forge.
Modpack Minecraft
A set of mods grouped in a .mrpack file, to import into a launcher like Modrinth App or Prism Launcher.
Pack de ressources
A .zip file that modifies the game's visuals to merge the two universes, without changing the rules.

Concrete examples of fusions

Here are some fusions available on PlayPadHub, each with its free zip and French guide. They are real projects, created by modders and hosted on their official pages.

See all game fusions →

How to install a fusion safely

Installation depends on the fusion type, but the principle is always the same: you download a PlayPadHub zip, follow the step-by-step guide, and get the project from its official source. Each fusion page details its own steps. The broad strokes:

  1. Check that you own the original games, legally purchased.
  2. Download the fusion zip from its PlayPadHub page, then extract it.
  3. Open the LISEZ-MOI.html guide included in the zip: it contains all clickable links.
  4. Get the project from its official page (Modrinth, GitHub, or Steam), never from an unknown source.
  5. Follow the installation steps specific to the fusion type (mod loader, modpack launcher, or simple launch script).
  6. Back up your data before any installation or update.

Sécurité : PlayPadHub zips contain no executable programs, no unchecked scripts, and no game files. They only point you to official downloads. Never launch a file received from a dubious source, and keep a copy of your saves.

What PlayPadHub zips contain

Each fusion comes with a free zip, designed for easy and safe installation. Depending on the fusion, it contains:

  • A LISEZ-MOI.html guide in PlayPadHub style, with all clickable links.
  • The same version in plain text (LISEZ-MOI.txt) for a note reader or a phone.
  • Shortcuts to the project page and its direct downloads.
  • For double launches, a script lancer-fusion.ps1 and its launcher LANCER-FUSION.bat.
  • The mod file or source code, only when the license allows it.

No original game files are included. The games remain the property of their publishers, and you must own them to play.

Why merge two games?

Merging two games means finding two universes you love in a single playthrough. It means replaying a campaign with the improvements of a newer engine. It means discovering a crossover no publisher would have dared to make. And above all, it means extending the life of games you already own, for free.

Fusions are for every curious player: fans of RPGs, building games, survival, or revisited classics. Each project has its personality, and PlayPadHub helps you install it hassle-free.

Game sheets related to the fusions

Each fusion is linked to the sheets of the games it features. Find their platforms, scores, and similar games on PlayPadHub:

Elden Ring, The Elder Scrolls V: Skyrim

Browse all game sheets →

Frequently Asked Questions

What is a game fusion?

A game fusion is a modders' project that brings two games into a single playable world: the same files, a single launch, a single save. For example, Fallout 3 and New Vegas played in the same game, or Morrowind recreated in the Oblivion engine. It's not two windows side by side: it's one single game.

Do you need to own the original games?

Yes. Each project reads your own legally purchased copy of the games. Without it, nothing launches. The mentioned brands and games belong to their respective publishers.

Are the merges free?

Yes, all projects featured on PlayPadHub are free. Only the original games are paid, sold by their publishers on Steam or other platforms.

What do PlayPadHub zips contain?

A step-by-step French guide and shortcuts to the official downloads. No game files, no executable programs. The zips only point you to the project's official sources.

Quels types de fusions existent ?

There are several families: synchronized dual launch (two Steam games launched together and placed side by side), the Minecraft mod and modpack, the resource pack, and conversions that recreate a game in another's engine (like Morrowind in Oblivion).

Can you get banned using these merges?

These projects are played solo or on their own multiplayer servers. Just avoid mixing modified files with the publishers' official online services.

Ready to merge two games?

Browse the PlayPadHub fusion catalog, choose your fusion, and follow its French guide. Free, no sign-up, and no game files in the zips.