Most engine comparisons are written for people starting a hobby project. This one is written for the other situation: you have a project, a budget and a deadline, and you are about to hand part of it to a studio you have not worked with before. The engine decision and the partner decision are not independent, and getting the order wrong is expensive. Some of what follows argues against hiring us.
What each engine makes cheap
Both engines can build almost anything, so the useful comparison is what each one makes cheap.
Unreal Engine 5 is cheaper when fidelity is the product. Nanite removes most of the LOD authoring work for dense geometry, and Lumen removes the lightmap bake cycle entirely. On a high-fidelity PC, console or VR project, that saves weeks of artist time and brings the iteration loop down to seconds instead of overnight bakes. Sequencer is also the strongest in-engine cinematics toolchain available, which matters if trailers and story beats are part of the deliverable.
Unity is cheaper when reach and iteration are the product. Build times are shorter, the mobile deployment path is far better trodden, and the package ecosystem means many systems are integration work rather than engineering work. For hypercasual, mobile-first, AR, or anything that needs to run acceptably on a four-year-old midrange Android device, Unity gets you there with less fighting.
So if you are shipping to high-end PC, console or PC VR, UE5 is usually the lower-cost path despite the steeper learning curve. If you are shipping to phones or need very fast iteration on gameplay, Unity usually is.
Where the engine choice constrains your hiring
Most comparisons skip this part. The talent pools are different sizes and shapes. Unity has more developers overall. UE5 has fewer, and senior UE5 engineers (people fluent in the C++ side, the replication model and the build pipeline, not just Blueprints) are meaningfully scarcer and priced accordingly. If your project is UE5 and your budget assumes Unity market rates, the plan will not survive contact with scheduling.
Check for Blueprint-only teams. A studio can produce impressive UE5 demos entirely in Blueprints and still be unable to help you when you need a custom replication scheme, a plugin, or a fix below the scripting layer. Ask directly whether the people on your project write C++ and have shipped engine-level changes. The answer separates two very different tiers of vendor.
Version discipline matters more than the version number. UE5 minor releases can break plugins and workflows; Unity's LTS cadence is calmer, but its render pipelines (Built-in, URP, HDRP) are a compatibility minefield of their own. Ask which exact version the studio will work in, who decides when to upgrade, and what happens to your project if a mid-production upgrade is required.
Questions worth asking before you sign
These have sorted good engagements from bad ones for us more reliably than any portfolio review:
- Who exactly is on my project, and can I talk to them before we start? If the answer routes through an account manager, the people you evaluate are not the people who will write your code.
- What are the daily overlap hours, in my time zone? You want a number of hours here. "We're flexible" doesn't tell you anything.
- Can we start with one scoped, self-contained milestone? Any studio confident in its work will agree to be judged on a small piece of it first. It is also the cheapest way for you to discover a mismatch.
- Who owns the code and assets, and when? IP assignment should be settled in the contract before work starts, and deliverables should land in your repository continuously instead of arriving in one final handover that depends on payment.
- What happens when you roll off? Ask what documentation and handover you get. Work you cannot maintain keeps costing you after the contract ends.
When you should not outsource at all
If your core gameplay loop is still unproven, keep it in-house. External teams are very good at executing a defined thing and structurally bad at the ambiguous, high-iteration search for what the game is. The feedback loop is too slow and the incentives are wrong. Prototype until the loop is fun, then bring in help to build it properly.
The work that outsources well is well specified and capacity-bound: production art against an approved style guide, a discrete system like inventory or progression, a multiplayer backend, a port, or an extra pair of senior hands on a schedule you have already committed to.
What we recommend
We build in both. We recommend UE5 for high-fidelity PC, console and VR work, and Unity for mobile, hypercasual and fast-iteration projects. Because we do both, that recommendation follows the project rather than our staffing.
If you want to talk through which side of that line your project sits on, that conversation is free and we will tell you if the answer is "not us."
Planning the online side? Read how Redis sorted sets keep a leaderboard fast at a million players.