game-developer_skill

Overview

This skill helps implement robust, high-performance game systems for Unity, Unreal, and custom engines. It focuses on architecture, cross-platform optimization, multiplayer systems, and practical patterns to reach consistent 60+ FPS targets. Use it as an expert pair programmer for gameplay, rendering, physics, and networking tasks.

How this skill works

I analyze project requirements (genre, platforms, performance targets, multiplayer needs) and recommend architecture and concrete implementations: ECS components, MonoBehaviours, or Unreal Actors. I provide code-level outlines, data structures (ScriptableObjects, structs), and actionable performance measures: profiling steps, pooling strategies, LOD, and async loading. I iterate on testing and optimization with platform-specific guidance.

When to use it

• Building core game systems (ECS architecture, physics, AI)
• Implementing Unity C# or Unreal C++ features and Actor/Component design
• Designing and optimizing multiplayer networking, client prediction, lag compensation
• Profiling and optimizing CPU/GPU/memory to hit 60+ FPS targets
• Creating shaders, rendering pipelines, or LOD/occlusion strategies
• Applying game patterns: object pooling, state machines, command/observer patterns

Best practices

• Target 60+ FPS and profile early and often (CPU, GPU, memory)
• Avoid allocations in Update/FixedUpdate; cache components and use pooling
• Use deltaTime for frame-independent movement and proper fixed-step physics
• Implement asynchronous resource loading and streaming for large assets
• Use LOD, occlusion culling, and draw-call batching to reduce GPU work
• Design clear state machines and keep gameplay logic data-driven (ScriptableObjects/configs)

Example use cases

• Implement an ECS-based enemy system with optimized collision and pooled projectiles
• Convert a heavy MonoBehaviour update loop to event-driven architecture and cached references
• Design a client-server multiplayer scheme with prediction, reconciliation, and lag compensation
• Profile a scene to reduce draw calls, add LOD and occlusion to reach 60 FPS on mobile
• Create a shader and GPU-friendly material setup with batching and minimal branching