Stack Rush: Hyper Casual Puzzle | Nine Pixels Case Study
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Game Development

Stack Rush: Hyper Casual Puzzle

Hyper Casual · Unity · iOS & Android · 8-week brief-to-live

👥4-person fixed price
🕑8 weeks
📱iOS & Android
⚙️Unity 2022 LTS
Stack Rush: Hyper Casual Puzzle
Day-1 retention rate
52%
Day-1 retention (genre avg: 40%)
52%
Brief to live on stores
8 weeks
Brief to live on stores
8 weeks
Overview

Stack Rush is a hyper-casual stacking puzzle game delivered complete and store-ready in 8 weeks, starting from blank Unity project to live on both stores. Fixed-price engagement targeting a seasonal UA window.

The Challenge

Publisher needed the game built and shipped within 8 weeks. Previous studios had failed this client on timeline due to process overhead. The brief: lean team, no friction, daily async updates, playable build every Friday.

Our Solution

Scope locked in a 3-hour call before writing a line of code. 4-person team, no PM layer: two engineers, a UI artist, QA. Core loop prototype-complete by end of week 2. Weeks 3–6: content, juice, feel. Weeks 7–8: monetisation integration, QA, store submission. 60fps on 5-year-old budget devices via custom lightweight particle system, texture atlasing, aggressive GC management.

Technology Stack
Unity 2022 LTSC#Unity Ads (rewarded)Adjust (attribution)Firebase AnalyticsMAX MediationUnity Remote ConfigTextMeshPro
Results
52%
Day-1 retention rate
52%
Day-1 retention (genre avg: 40%)
8 weeks
Brief to live on stores
60fps
On 5yr-old budget devices
£0.08
CPI at launch
<2%
Crash rate at launch
Fastest professional game build I've seen. Build every Friday, issues resolved same day. This is how game development should feel.
Head of Production, Nordic Mobile Publisher
Project Details
Client
Mobile Publisher, Nordics
Duration
8 weeks
Team
4-person fixed price
Platform
iOS & Android
Engine / Stack
Unity 2022 LTS
Category
Game Development
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