Alien Interactions - Health System

The Alien Interactions Universal Health System is a fully modular, prefab-driven health and damage framework for Unity 6+. No coding required for basic setup, but with a complete C# API for deep customization.

Key Benefits:

• Simply place our PlayerHUDCanvas or EnemyHealthBarCanvas prefabs in your scene and link your GameObjects—health bars appear instantly.Drag-and-Drop Setup
• • Enemy bars use the built-in UI Slider for maximum compatibilityRadial Player & Slider Enemy Bars • Player HUD uses a custom radial Image (requires Unity’s 2D Sprite package)
• Use included SimpleDeathHandler to auto-disable on death, or hook into OnDeath to trigger VFX, respawn logic, or score systems.Event-Driven Death Handling
• Access HealthController methods and events to apply damage, heal, adjust max health, or kill instantly—all with a few lines of code.Fully Exposed API
• Lightweight MonoBehaviours, zero third-party dependencies, tested on Built-in RP, URP, HDRP, and all Unity-supported platforms.Performance & Compatibility

What’s Included?

• EnemyHealthBarCanvas (world-space slider bar + UI script)Prefabs/ PlayerHUDCanvas (radial health bar + UI script)
• SimpleDeathHandler.cs (demo death handler)Scripts/ HealthController.cs (core health logic) HealthBarUI.cs (updates visuals based on health ratio)
• DemoScene.unity with example inputs and on-screen instructions
• Full Developer & Beginner Documentation to get you up and running in minutes

Minimal Requirements:

• Unity 6.0+
• 2D Sprite package (for radial player bar)
• (Optional) Unity Input System package for the demo scene

Get Started in Seconds:

1. Import the package
2. Drag the prefab(s) into your scene
3. Assign your GameObjects in the Inspector
4. Press Play and watch your health bars spring to life

Whether you’re prototyping or shipping a polished game, the Alien Interactions Health System gives you worry-free, battle-tested health and death mechanics in under five minutes.