Highway Racer Pro gameplay

Spektra Games · 2025–2026

Highway Racer Pro

A realistic highway traffic racer that launched to #1 in Racing on the US App Store and stayed the category’s most-downloaded title.

Role Founding engineerEngine UnityPlatforms iOS, AndroidLaunched May 2025

Overview

What it is

Overview — two or three paragraphs on what the game is, what launch looked like, and the scale it runs at now.

My role

What I built

  • Started the project with the CTO as one of its first two engineers, and worked across effectively every system through launch and live operation.
  • Set the architecture, documentation and review standards for the codebase.
  • Built the modular vehicle physics components behind the game’s driving feel, plus the highway traffic simulation and racing AI.
  • Built an internal profiling tool that auto-captures memory and performance traces from scripted scenarios and runs AI analysis over them, surfacing regressions unattended.
  • Built a native iOS and Android plugin exposing home-screen quick actions and app shortcuts into Unity.
  • Designed the case study and ran technical interviews for the engineers hired as the team grew to four.
The Highway Racer Pro customization garage, with body parts listed down the left.
The customization garage — 60+ part categories per vehicle.

Customization at scale

The customization system spans 45+ vehicles, each with 60+ part categories, 4+ parts per category and five LODs per part — all authored inside a single vehicle FBX. I extracted those parts and their LODs into Addressables groups tuned by packing option and label, so only what a scene actually needs reaches memory.

Add detail: how the extraction pipeline worked, what the grouping strategy was, and what it bought in memory terms.

Customization screen or part breakdown — 1600×900

Traffic simulation and racing AI

Describe the highway traffic system: density, lane logic, how AI drivers behave and how it stays cheap on mobile.

Traffic or AI debug view — 1600×900

Profiling, run unattended

Describe the internal tool: what it captures, how scenarios are scripted, what the AI analysis surfaces, and how it fit into the workflow.

Tool screenshot or report output — 1600×900

Gallery

In game

Results

How it landed

Highway Racer Pro launched to #1 in Racing on the US App Store and topped the charts in 45+ countries, on 350,000+ pre-registrations and no paid marketing. It has been the category’s most-downloaded title on the US App Store since, and Apple featured it in a “Games We Love” editorial story.

Players make their own content about it — the clip below is a driving video by CouchCommander.

Player-made footage by CouchCommander, from 8:15. Muted — use the player controls for sound.