Highway Racer Pro: two tuned cars parked at a neon-lit petrol station on a Tokyo expressway at night.

Unity game developer in Istanbul

Özgür Çebi

I take games from an empty project to a live product and stay with them — six years across mid-core, hybrid-casual and hyper-casual titles.

Highway Racer Pro — #1 Racing, US App Store 15M players on Parking Master Multiplayer 2

Spektra Games, 2023–2026

Selected work

Two live titles I built and operated, from first commit to millions of players.

Highway Racer Pro gameplay

Highway Racer Pro

Founding engineer on gameplay, physics and tooling

#1 Racing on the US App Store at launch in the US and 45+ countries, and the category’s most-downloaded title since. Featured by Apple in “Games We Love”.

Vehicle physicsAddressablesTraffic AINative plugins

Read the case study

Highway Racer Pro case study
Parking Master Multiplayer 2 gameplay

Parking Master Multiplayer 2

Gameplay & performance engineering

A live open-world driving title with 15M unique players, where I shipped player-facing systems and kept the game smooth on low-end hardware.

Live opsMemory optimizationPlayer-facing systems

Read the case study

Parking Master Multiplayer 2 case study

2020–2023

Earlier work

Mid-core multiplayer and metaverse projects at HoloNext and KobGames.

Robo Squad

Mid-core multiplayer battle royale. I built the character system, skills, spectate mode, minimap, kill feed, trophy and mission systems, matchmaking and AI, plus the client side of the game APIs.

Hunt Heroes

Mid-core co-op multiplayer with 15+ playable characters, each with a unique attack ability. I owned gameplay programming, real-time networking, AI, matchmaking and mission tracking, along with IAP, Play Store, Game Center and Facebook login integration and release.

Kitties Metaverse

A WebGL open-world metaverse built in Unity and Photon Quantum — 128 concurrent players per room, with 4000+ playable characters assembled at runtime from on-chain data. Players link a wallet, explore, chat and join PvP battles, on web and mobile.

27 solo titles

Hyper-casual

The 27 titles below I developed solo at HoloNext and KobGames, on top of a modular, extendable gameplay codebase I engineered to make new prototypes fast to stand up. I contributed to 15+ more by mentoring junior developers or managing the project. Most have since been delisted — hyper-casual titles are sunset once their live window closes.

  • Balloon Fever
  • Oh My Muscles!
  • Boss To Raise
  • Merge Defenser
  • Idle Warrior
  • Monster Car Arena
  • Last Man Standing
  • Office Flirt
  • Count And Build
  • Jewelry Merge
  • Minion or Giant
  • Archer Run 3D
  • Dino Escape Run
  • Draw Shapes 3D
  • Basket Life
  • Date Time!
  • Influencer Agency
  • Shoe Run
  • Drift Pursuit
  • Lovers Match
  • Hair Punch
  • Fix Her Hair
  • Color Merge Runner
  • Sword Forger
  • Tactical Police Escape
  • Shop Lift Escape
  • Comment Master

IEEE TUAC, 2021

Published research

Behavior Tree vs. Finite State Machine AI in Shooter Games

Built a shooter environment to benchmark two AI architectures head to head across varying agent counts and maps, then presented the results at the IEEE TUAC conference.

Read the paper (PDF) — opens in a new tab

How I work

I’m a Unity developer with six years on live mobile games, most recently as one of the first two engineers on Highway Racer Pro. I work across whatever the game needs — gameplay, physics, AI, networking and tooling — and I build from modular architecture and its documentation outward, automating what would otherwise be done by hand.

I’ve worked on-site, hybrid and fully remote over the past six years.

Right now I’m looking for my next role. If you have something interesting, reach me on LinkedIn (opens in a new tab) or at cebiozgur@outlook.com.

  • Nov 2023 – Sep 2026

    Spektra Games

    Game Developer — Highway Racer Pro, Parking Master Multiplayer 2

  • Aug 2022 – Aug 2023

    KobGames Studios

    Multiplayer Unity Developer — Kitties Metaverse

  • Sep 2020 – Aug 2022

    HoloNext

    Unity Developer — Hunt Heroes, Robo Squad

  • 2016 – 2021

    Yeditepe University

    BSc Computer Engineering