Spindle
Fidget-spinner game with a Play-Store referral reward system — Flutter front, Node.js economy behind.

Liveon Play Store
Referralreward economy via Install Referrer API
The product
Spindle is a stress-relief fidget spinner game that pairs simple, satisfying physics with a real backend economy: players earn rewards for inviting friends, tracked through the Play Install Referrer API and settled server-side.
It's a small game with production infrastructure — Node.js + PostgreSQL reward ledger, AdMob monetisation, and an API designed to be cheat-resistant.
Under the hood
THE ENGINEERING
- 01
Play Install Referrer integration for verified invite attribution
- 02
Server-side reward ledger in Node.js + PostgreSQL
- 03
AdMob rewarded flow wired into the game economy
In the product


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