Mobile Game Prototype Development
A prototype is a decision-making tool, not production template. Its goal: test if core loop works in practice before spending money on art, sound, and polish. A good prototype answers one or two specific questions and nothing more.
What Should Prototype Test
Before starting, formulate hypothesis: "Mechanic X will engage players because Y". Prototype disproves or confirms — and nothing else. Don't need UI with icons, don't need 10 levels, don't need sounds. Need one working gameplay session giveable to 5–10 people from target audience.
Typical questions prototype tests:
- Is core mechanic fun in pure form (without narrative and progression)?
- Is control understandable without tutorial?
- Do players want to replay the session?
Stack for Rapid Prototyping
Unity with temporary primitives (Cube, Sphere, Plane) instead of art — not quality deficiency, it's the rule. Prototype phase in Unity in 1–3 weeks realistic if:
- No "future-proof" code. Prototype written fast and dirty. MonoBehaviour without DI, without MVVM, singletons everywhere convenient. Conscious choice — prototype code doesn't go to production.
-
[SerializeField]andRangeattributes on all gameplay parameters — to quickly tweak in Play Mode without recompilation. - Unity Test Framework for critical logic (combat calculation, puzzle physics) — to not hunt bugs by hand on every parameter change.
For mobile prototype testing in real conditions: Unity Remote 5 for quick touch check without build, plus development build via USB deploy on Android/iOS for real performance feel.
When Prototype Is Ready
Prototype is ready when you can give it to stranger, they play 5 minutes with no explanation, and you get answer to your hypothesis — positive or negative. Both results equally valuable.
Timeline: core mechanic prototype — 1–3 weeks. Prototype with several mechanics for direction choice — 3–6 weeks.