In the December 2025 - wrapped up this Unity Tower Defense o...

In the December 2025 - wrapped up this Unity Tower Defense overhaul! 🚀

Started with legacy spaghetti code, tight coupling, and Update() hell. Over 6 phases, rebuilt with ECS-inspired systems, runtime fixes, pooling, GPU instancing, SRP Batcher & shadow optimization.

Results:

• +125% FPS (63.9 → 144.1 VSync-locked)

• 99.5% fewer Update() calls

• 74% batch reduction (7,277 → 1,917)

• 99% shadow casters cut (9,125 → 83)

Outcome: Scalable codebase + ~136 pages of docs (architecture, metrics, handover guide). Locked at 144 FPS - rewarding! 😊

Aztoon Lab

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