The Ultimate Weather + Sky System Bundle is a complete, production-ready environmental simulation solution for Unreal Engine. This bundle combines multiple high-quality systems into one cohesive package, enabling developers to create living, reactive worlds with dynamic skies, seasonal transitions, realistic weather effects, NPC reactions, and environmental destruction.
Whether you are building an open-world game, survival experience, simulator, or cinematic scene, this bundle gives you full control over time, climate, atmosphere, and environmental interaction, all fully customizable and performance-friendly.
Dynamic Sky SystemA fully customizable day–night and climate controller that acts as the core of the bundle.
Seamless Day–Night Cycle with adjustable time speed
Digital & Analog Clocks for real-time time tracking
Sun, Moon, Stars, Aurora, Meteors, and Rainbows
Integrated Weather Control (rain, thunder, transitions)
Interactive Blueprints (e.g., campfire reacts to time & weather)
Reactive NPC System (included inside this pack)
NPCs sleep at night, work during the day
Seek shelter during rain and bad weather
High-quality weather effects designed for realism and immersion.
Heavy & Light Rain with Thunder & Lightning
Gradual ground wetness accumulation and drying
Screen water droplets, leaks, and freezing effects
Player footsteps interaction with water
Snowfall system with icy screen effects
Snow & ice painting on meshes using Vertex Colors
Realistic snowy ground visuals
A lightweight yet powerful rain-only solution, ideal for modular use or optimization.
Dynamic rain particles and ambient sounds
Thunder, mist, and lightning based on rain intensity
Gradual wetness buildup and natural drying
Screen-space water droplets and leaks
Roof-edge rain dripping system (latest update)
FX and Non-FX demo levels included
A four-season environmental transformation system, inspired by Epic’s Kite Demo and Infinity Blade assets.
Full seasonal cycle: Spring, Summer, Autumn, Winter
Snow layer material with adjustable height
Snow deformation using Runtime Virtual Textures
Character snow trails and environmental interaction
Frozen screen effects and snowfall
Climate-driven material parameter control
Continuous seasonal looping with smooth transitions
A realistic environmental destruction system that reacts to terrain and vegetation.
Customizable Flamethrower system
Fire spreads dynamically across grasses and trees
Trees ignite from burning grass and nearby trees
Fire propagation restricted to valid landscape areas
Persistent burnt surfaces throughout gameplay
Burn effects powered by Runtime Virtual Textures