Miami Gangster Mafia Game 3D

📊 Key Stats

1M+ downloads on Google Play

★3.9 average rating

One of the most popular open‑world GTA‑style mobile titles in its category

🔫 Miami Mafia Gangster Simulator is a GTA‑style open‑world mobile game where players roam freely across a living city, engaging in combat with civilians and police while exploring an expansive urban environment. Its success demonstrated strong market appeal in the highly competitive open‑world mobile genre.

👨‍💻 My Role I was responsible for designing and implementing the pedestrian and traffic system — one of the most performance‑critical and technically complex components of the game. This system was engineered to deliver believable city density while maintaining smooth performance across mobile hardware.

🛠️ What I Built ✔ Runtime Pedestrian & Traffic System — Custom architecture dividing the city into blocks, each managing its own agents. ✔ Dynamic Navigation Meshes — Activated and updated at runtime based on player proximity and movement. ✔ Optimized Agent Behavior — Pedestrians and vehicles simulated only when relevant, reducing CPU and memory load. ✔ Scalable Architecture — Designed to handle large open worlds while respecting mobile hardware constraints.

📌 The Takeaway This project was a pure systems engineering challenge — building a runtime architecture that scales elegantly across a large open world while keeping performance stable. The result is a traffic and pedestrian simulation that feels alive, runs efficiently, and holds up at scale with over a million players worldwide.