The Unity Asset Store Summer Sale is on – and this year, it comes with an exciting twist. For a limited time, you can save 50% on a wide selection of assets, including Editor Extensions, Visual Scripting tools, VFX, Animations, Environments, Characters, and much more. Daily Flash Deals have also returned, featuring steep discounts that change every 24 hours. Each deal starts at 70% off on day one, drops to 60% the next day, and settles at 50% for the remainder of the sale. To keep things fresh, each day brings a new themed selection of Flash Deals. From massive bundles and powerful dev tools to retro gems, fantasy favorites, and sci-fi standouts, there's something new to discover every day – including a surprise theme revealed each Saturday. Don’t miss your chance to stock up and save big. The Summer Sale won’t last forever.
The Unity Asset Store Summer Sale is on – and this year, it comes with an exciting twist. For a limited time, you can save 50% on a wide selection of assets, including Editor Extensions, Visual Scripting tools, VFX, Animations, Environments, Characters, and much more. Daily Flash Deals have also returned, featuring steep discounts that change every 24 hours. Each deal starts at 70% off on day one, drops to 60% the next day, and settles at 50% for the remainder of the sale. To keep things fresh, each day brings a new themed selection of Flash Deals. From massive bundles and powerful dev tools to retro gems, fantasy favorites, and sci-fi standouts, there's something new to discover every day – including a surprise theme revealed each Saturday. Don’t miss your chance to stock up and save big. The Summer Sale won’t last forever.

Sky Engine

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Publisher

Ultrabolt.dev

Please Note

This entry is from Sunday July 6, 2025. The price of the asset may have changed since then.
Please visit our homepage for recent offers and sales. Official and private Unity Asset Store™ sales usually last about 14 days.

Overview

🌤️ Sky Engine – Day/Night & Weather Toolkit for Unity

Sky Engine is a lightweight and easy-to-use Unity system for adding smooth day/night cycles, dynamic weather, and atmospheric transitions to your game — with full customization and editor support.

🔧 Key Features

  • ☀️ Dynamic Time System
    Customizable day speed and length with real-time values for current day and time of day.
  • 🌙 Sun & Moon System
    Full celestial rotation with independent lighting and shadows for both sun and moon.
  • 🌌 Rotating Stars
    Star field that appears only at night, synced with time rotation.
  • 🌦️ Weather Control
    Switch between clear, low/high clouds, or rain from the inspector or with a single call (SetWeather(int)).
  • 🎨 Skybox Shader Included
    Custom shader allows smooth blending of sky top & bottom gradient colors over time.
  • 🌫️ Fog Transitions
    Supports separate fog densities for day and night.
  • 🧭 WorldTimeEvent System
    Trigger UnityEvents at a specific day and time (e.g., spawn enemies, show messages, start boss fights).
  • 🎯 Editor UI & Auto Naming
    Includes helpful custom inspectors and auto-naming for events

💬 Need Help?

Email: ultraboltstudio@gmail.com

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