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Compatibility guide
Unity 6 compatibility for Ninjutsu Games modules
A conservative upgrade path for Game Creator 2, Photon, Fusion, and Ninjutsu Games modules.
7 min readReviewed July 2026
Verified starting points
| Module | Unity 6 guidance | Important companion version |
|---|---|---|
| Photon Module 2 / Photon Core 1.5 | Verified on Unity 6.3, 6.4, and 6.5 | Game Creator 2 Core 2.18.60+ and PUN 2.55 |
| State Machine 2 | Current setup starts at Unity 6000.3.1f1; current releases include Unity 6.4 and 6.5 support | Use the latest matching Game Creator 2 version |
| Fusion | Current Asset Store release is authored for Unity 6 | Install the matching Photon Fusion SDK and Game Creator 2 |
| Photon gameplay integrations | Current Shooter, Melee, Stats and LootLocker release notes include Unity 6 support | Install Core first, then only the matching GC2 gameplay module |
| Factions | Current release notes include Unity 6 support | Game Creator 2 is required; a Photon or Fusion bridge is separate |
Safe upgrade order
- Clone or back up the project and commit a clean baseline before changing packages.
- Move to the target Unity editor and let Unity complete the initial import before updating packages.
- Update Game Creator 2 Core and the official Game Creator modules your project uses.
- Update PUN 2 or Fusion, then install the matching Ninjutsu base networking module.
- Install gameplay integrations one at a time and resolve errors before adding the next module.
- Test Editor play mode, a standalone build, and two clients in the same real room. WebGL projects need an actual browser build.
Do not infer compatibility from compilation alone
A clean Console proves that assemblies compile; it does not prove ownership, spawning, late joins, RPC targets, scene changes, or WebGL transport behavior. Multiplayer verification needs at least two clients and the topology you plan to ship.
For production projects, keep the working package set pinned until the upgrade branch passes your representative gameplay loop.
Quick purchase checklist
| If you are building | Required base | Common additions | Action |
|---|---|---|---|
| PUN 2 multiplayer | Game Creator 2 + PUN 2 + Photon Module 2 | Photon Stats, Inventory, Melee, Shooter, Abilities, or Factions | Photon Module 2 |
| Fusion multiplayer | Game Creator 2 + Photon Fusion + Fusion | Fusion Stats or Fusion Factions | Fusion |
| Reusable visual logic | Game Creator 2 + State Machine 2 | Photon or Fusion integration only if the state must be networked | State Machine 2 |
Next step