Easy Build System - Modular Building System

Easy Build System is a complete building framework for Unity.

Everything you need to implement a full building system.

Extensible, source-included, and built to scale.

🚀 Getting Started

Set up a full building system in any scene with just a few clicks.

Docs include beginner guides, API reference, and architecture overview.

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🛠️ Modular & Intuitive Workflow

Custom inspectors, visual gizmos, and editors make setup fast.

One-click presets let you share settings across parts instantly.

Each feature is a standalone module: grids, batching, saving, grouping.

Enable only what you need. Lightweight, no hard dependencies.

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🎮 Cross-Platform Ready

Supports Legacy Input Manager and the new Input System out of the box.

Compatible with Standalone, Android, iOS, WebGL, Console, and VR/AR/XR.

Switch input backends without modifying your building setup.

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⚙️ Flexible API & Full Source Code

Complete C# source included, following Unity conventions.

Clean architecture with consistent naming and XML documentation.

Designed for customization and extension. No external dependencies.

Assembly definitions included for fast compilation.

📦 Demos & Extensions

Multiple demo scenes showcase core features and input setups.

First person, third person, top-down, orbital, mobile, gamepad, and VR.

Extensions provide ready-made templates for common game genres.

🔗 Integrations

• Game Creator 2 Inventory

• Game Creator 2

• PlayMaker

• PUN 2

• Fish-Net

• Mirror

🖥️ Unity Version & Render Pipeline Support

• Standard Render Pipeline 2021.1+ / 2022.1+ / 2023.1+ / 6.4+

• Universal Render Pipeline (URP) 2021.1+ / 2022.1+ / 2023.1+ / 6.4+

• High Definition Render Pipeline (HDRP) 2021.1+ / 2022.1+ / 2023.1+ / 6.4+

🌐 Community & Resources

• Documentation Complete guides, API reference, and architecture overview.

• YouTube Tutorials, feature breakdowns, and update previews.

• Discord Community hub for support, feedback, and discussions.

• Twitter Follow updates, announcements, and development news.

• Support Direct technical assistance when you need help.

Questions? Reach out on Discord or contact Support.

See the Technical Details section for the full feature breakdown.

Release Notes

# Version 7.0.1

Fixes

- Building Group bounds now update correctly after a part is adjusted.

- Building Category slot display fixed in the Building Catalog Menu UI.

- Fixed missing Input Action References on the New Input System.

# Version 7.0.0

> Complete rewrite from the ground up.

> Every component has been redesigned or replaced.

> Migration from 6.x is not supported.

Features

- Hub Editor with 8 pages: setup, samples, integrations,

extensions, integrity checks, release notes, roadmap, licenses.

- Building Grid system with cell-based placement, occupancy

tracking, stage progression, and visual rendering.

- Building Terrain system with full backup and restore at runtime.

- Building Menus UI: Catalog and Radial menus with categories,

slot actions, search, gamepad, and mobile support.

- Building Collections ScriptableObject for reusable part sets.

- Renderer Variant system with material sets per variant.

- Building Rules system with height and category filters.

- Command system (Place, Destroy, Adjust, Upgrade) with Undo.

- Preset system for Building Parts using ScriptableObjects.

- Animation Behavior with Animator states and procedural support.

- Debris Behavior reacting to destruction, falling, and collapse.

- Audio system for building event sound effects.

- Quick Setup tool for one-click scene configuration.

- Building Part creation tool with automatic mesh, variant,

condition, and prefab setup.

- Building Part Registry with auto-refresh post-processor.

- Save system with multiple providers, backup files, scene-based

keys, and mobile auto-save.

- Network adapter interfaces for multiplayer authority and sync.

- Four camera views: First Person, Third Person, Top Down, Orbital.

- Upgrade building mode for switching part variants in place.

- Adjustment building mode for repositioning placed parts.

Improvements

- Shared editor helpers for consistent inspector layouts.

- HashSet-based registries for faster lookups.

- Unified manager API: Register, Unregister, GetRegistered<T>().

- Centralized event-publisher architecture across all systems.

- Building Area redesigned with priority, shapes, and modular rules.

- Building Socket data-driven with cleaner snap results.

- Building Group lifecycle and batching more reliable.

- Building Part split into sub-systems: Renderer, Placement,

Condition, Behavior, Cache.

- Building Input unified for new Input System and legacy input.

- Building Controller simplified with state-based mode management.

- Placement accuracy improved for snapping, grounding, and overlap.

- Collision and stability checks rewritten with fewer false positives.

Removed

- NavMesh Condition removed from core (available as extension).

- Physics Condition replaced by Collapse Condition.

- Linkable Surface and Collision Surface removed.

- Standalone/Mobile Input Handlers replaced by unified Building Input.

- Inspector Building Placer removed.

- Legacy UnityEvents wiring and async preview hacks removed.

Fixes

- Hard-coded restrictions replaced by modular area rules.

- Unstable snapping and socket obstruction edge cases resolved.

- Unreliable overlap detection and bounds issues fixed.

- Batching cleanup issues in Building Groups resolved.