3 patterns that stop your Unity project from turning into spaghetti

Quick Unity dev note for you.

A long time ago, I spent months stuck trying to wrap my head around object-oriented programming. I read the tutorials, nodded along to the theory, and none of it actually stuck. It wasn't until I landed a job with a boss who had decades of real experience that it finally clicked. He didn't just explain the concepts, he showed me how to actually think in objects and systems, and something shifted. Ever since, patterns like these have been baked into how I architect every Unity project I touch.

Every messy Unity project I've seen has the same root cause: too much logic crammed into too few scripts. Three patterns that keep things sane as a project grows:

1. Composition over inheritance

Instead of one giant PlayerController doing movement, combat, inventory, and UI, split it into small, focused components (Movement, Health, Inventory) that live on the same GameObject. Each one is easy to test and easy to replace. Unity's own component-based architecture guidance is built around exactly this idea.

2. ScriptableObject event channels

Instead of scripts calling each other directly (or routing everything through a singleton), define a ScriptableObject as an event channel. Systems raise and listen to it without knowing about each other. Fewer tangled references, easier to reuse across scenes.

3. Interfaces for cross-system contracts

An IDamageable interface means your combat system doesn't need to know whether it hit a player, an enemy, or a breakable crate; it just needs to know the target can take damage. That's the difference between adding a new enemy type in ten minutes versus touching six existing scripts. If interfaces are still new to you, Microsoft's C# interfaces guide is a solid primer, the concept isn't Unity-specific.

None of this is about being clever. It's about not having to remember every dependency in your head six months from now.

If you want a second pair of eyes on where your own project has already drifted, ORDO scans for broken references and structural drift and gives you a concrete list instead of a style guide to re-read.

If this newsletter has been useful, the best thing you can do for it is pass it along to another Unity dev who'd get something out of it. It's still small enough that a single forward makes a real difference, and I'd genuinely appreciate it.

From my desk

I'll admit it, I'm genuinely excited about CoreCLR. Anyone who's spent years watching that little compile progress bar crawl across the bottom of the editor knows exactly why. Every domain reload is a tiny tax on momentum, you're mid-thought about a bug and then you're just waiting. I'm hopeful that once CoreCLR fully lands, that tax mostly disappears. I say hopeful because I haven't run the full editor build myself yet, so I'm not going to oversell it until I've felt it firsthand. But if even half of what's promised holds up, it's going to change how much I can get done in the same two hours after the kids are in bed.

Unity News

Speaking of which: Unity shipped Fast Enter Play Mode as the default in Unity 6.6, which skips full domain reloads when you hit play, exactly the kind of thing that prepares the ground for CoreCLR. Experimental CoreCLR builds are already available for desktop and iOS in the Unity 6.7 alpha, though they're not supported for production yet. The full CoreCLR editor, with Mono gone entirely and access to .NET 10 and C# 14, is targeted for Unity 7.0. Worth watching if, like me, you've been waiting for this one.

– Dan