Bring characters to life with dynamic, modular hit reactions! Procedural, customizable, lightweight — perfect for any game needing responsive impact effects. No code or extra rigs needed!
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This is a paid asset, but now you can download the “Procedural Hit Reactions System” for FREE. Please note that this package is provided solely for learning purposes or to test the product before purchase, and not for commercial use.
Procedural Hit Reactions System v1.1.0 (13 May 2025)
“If possible, please buy the package to support the developer”
Description
Breathe life into your characters with Procedural Hit Reactions – a modular, lightweight, and powerful system for dynamic, physical hit responses!
No need for countless animations or complicated setups — whether you’re making shooters, action RPGs, VR games, or anything in between, this asset gives you smooth, believable hit reactions with minimal effort.
This system is actively updated and evolving — many more features and improvements are on the way!
???? Key Features
Bone-Specific Reactions: Easily attach reactions to any bone or body part — head, chest, arms, even props.
Customizable Reaction Profiles: Use simple ScriptableObjects to define reaction strength, rotation, translation, blend curves, and timing.
Directional Awareness: Make impacts feel real by reacting to incoming bullet vectors or contact points.
Additive or Override Modes: Blend reactions into your existing Animator-driven motions — or skip animations entirely and apply procedural motion directly to Transforms.
Advanced Blending Controls: Fine-tune blend-in/out speeds, simulate heavy impacts with Slow Blend Mode, or carry over previous reactions for ultra-smooth realism.
Follow-Through Effects: Make connected bones (hair, weapons, gear) naturally trail behind the main impact motion.
Plug-and-Play Projectile Integration: Easily add our included HitReactionTrigger script to any projectile, melee weapon, or explosion — and automatically trigger hit reactions on collision. Supports both Rigidbody-based and Transform-based projectiles!
Minimal Setup, Maximum Power: No runtime rig rebuilds. No heavy Animator constraints. Just plug, configure, and react!
Full Flexibility: Works with animated characters (Animator) or static objects — all handled procedurally through Transform overrides when needed.
???? Perfect For
Third-Person Shooters
First-Person Games
Melee Combat Systems
Projectile Impact Reactions ( Arrows, bullets etc. )
VR / AR Interactions
Explosions, impacts, and environmental destruction
Any project needing dynamic impact feedback
???? Why Choose Procedural Hit Reactions?
✅ Ultra-lightweight and optimized for runtime performance
✅ Fully modular — easy to customize or extend
✅ Works alongside Unity Animator or entirely Transform-driven
✅ Minimal setup time: Get up and running in minutes
✅ Clean, readable full C# source code included
✅ Full documentation, tutorials, and active Discord support
✅ Actively updated — with even more improvements coming!
???? Bonus
Ready-to-go projectile and character demo scenes included
Full C# source code included
Supports Unity Animator layers (for clean blending)
Free future updates
Bring dynamic, believable hit reactions to your gameobjects today!
Feel the impact — procedurally.
✨ Links
???? Full Documentation and Tutorials
???? Join Our Discord for Support and News
Changelog
Version 1.1 — May 2025
• ReactionProfile Overhaul: Moved all per-hit options (timing, blend behaviour, hit acceptance, axis-locks) from BodyPartReactor into ReactionProfile
•FollowObjects System: Replaced legacy followTransforms with List<FollowObject> to allow per-object rot/pos weights
• Inspector Enhancements: Migrate Legacy Settings button to convert v1.0 reactor fields into a new profile asset
• Create New Profile button under the Profile header
• Migration Utility: Automatically duplicates and renames profiles when legacy values differ, preserving existing setups
• Added UnityPackages for each render pipeline (builtin,urp,hdrp) so the demo
is playable on any render pipeline.
Version 1.0 — Initial Release
Core procedural hit-reaction system
Basic BodyPartReactor + HitReactionController
HitReactionTrigger for auto-routing projectile impacts
Sample FPSController and demo scene included
Technical details
Tested on unity versions: 2021,2022,2023, unity 6
