Gym Fitness Bodybuilding Sim

Gym Fitness Bodybuilding Simulator is a mobile simulation title developed at Gamivision Studio, crossing 50,000 downloads on Google Play. It was my first project at the studio and one I delivered entirely as the sole core developer and technical lead — completed and shipped in just 2 weeks, demonstrating my ability to architect and deliver complex simulation systems under tight deadlines.

The standout engineering achievement of this project is the AI-driven NPC queue system. Rather than having static or randomly placed characters, NPCs intelligently navigate the gym layout, identify available equipment, queue up when machines are occupied, and transition naturally between different activities. This multi-agent queue management system creates a dynamic, realistic gym atmosphere where the simulation feels genuinely alive — every NPC behaves with purpose and awareness of the shared environment around them.

Beyond the NPC system, I built the complete equipment interaction framework — handling the pickup, placement, and repositioning of gym machines within the environment, giving players full control over how they design and manage their gym. I also created a custom animation system for NPC workout exercises, synchronized between players, NPCs, and the machines they interact with, ensuring every interaction looked polished and believable.

The game's economy system tied everything together — players buy and sell equipment, manage their gym's growth, and scale their business through a progression loop that rewards smart investment and layout decisions.