Advanced Physics Based Bullet Projectile System for Unreal Engine

The Bullet Projectile System is a high-performance, physics-driven bullet simulation framework designed for Unreal Engine. It provides realistic projectile behavior, including gravity effects, drag force, wind influence, penetration, and ricochet mechanics—all optimized within a World Subsystem for seamless performance.

🎮 Playable Demo

▷ Showcase Video

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Key Features

✅ Physics-Based Projectile Simulation

• Fully customizable bullet speed, mass, cross-section, and drag coefficient.

• Real-time gravity, wind resistance, and environmental influences.

• Use Gameplay Cue Notify (Burst) for advanced effects (Decal, Niagara, Sound, Camera shake)

✅ Penetration & Ricochet System

• Advanced penetration logic based on material properties.

• Dynamic ricochet calculations depending on impact angle and velocity.

✅ Wind Influence

• Integrates with UWindDirectionalSourceComponent for realistic wind effects.

• Automatically adjusts bullet trajectory based on wind strength and direction.

✅ Impact & Visual Effects

• Customizable decals and particles for bullet impacts and ricochets.

• Debug visualization for projectile paths, impacts, and penetration results.

✅ Optimized & Scalable

• Uses TInlineAllocator<40> for efficient projectile management.

• Subsystem-based design eliminates performance overhead from actors.

✅ Easy Integration & Customization

• Fire projectiles using simple function calls (FireProjectile(), FireProjectiles()).

• Configure bullet physics via data assets (ProjectileData, PhysMaterialDataAsset).

• Fully supports Blueprint and C++ workflows.

Ideal For

• Realistic shooting mechanics in FPS/TPS games.

• Ballistic simulation for military or training applications.

• Physics-based projectiles in survival, battle royale, or open-world games.

💡 Compatible with Unreal Engine 5+ | Works with Niagara VFX & Gameplay Ability System (GAS).