Complete, modular Building System for Unity URP: build mode, real structural integrity (support, load, collapse), snapping, crafting and gathering - all through a data-driven, no-code workflow.Build Bases That Behave Like They Have Real WeightNorthKit: Builder System is a complete, modular base-building system designed to integrate into your existing Unity project. Place buildable pieces, snap them together, craft and gather - and watch badly supported structures actually collapse. Create and configure everything through Data Assets and the Inspector, without writing system code for normal use.Complete Building SystemEverything you need for base-building in one modular system:Build ModeBuildable PiecesSnappingStructural IntegrityEditing & DemolitionBuild Cost & RefundsCrafting (Workbench & Handcraft)Gathering with ToolsAging & DecaySave SupportReal Structural IntegrityThis is the heart of the package. A structure is not a pile of independent pieces:Every piece must trace a path back to the ground.Pieces carry the load of whatever rests on them.Remove a support or overload a piece and the structure collapses - in a cascade that can bring down its neighbours.Pieces age and decay over time.Decoration (torches, lamps, flags) falls with the wall it is attached to.It is always live, and it is what makes a base feel like it has real weight.Data-Driven & No-CodeA buildable is a prefab with one component, a recipe is an entry in a book, a tool is an item asset. Author and balance everything in the Inspector instead of editing system code.Create -> Configure -> UseModular by DesignUse only what your project needs. Every major component is optional, so you can ship anything from a simple placement system to a full base-building experience.Easy to IntegrateAlready have your own character and controller? Add building to your existing project instead of rebuilding everything around a template.Your project. Your character. Your building rules.Built for Real GameplayCombine systems into deeper loops:Gather -> Recipes -> CraftResources -> Build Cost -> PlaceSupport -> Load -> CollapseHit -> Destroy -> CascadeSelf-ContainedBuilder ships with everything it needs to run: the required Core layer and the NorthKit: Inventory System are included in the package - nothing else to buy. Already using NorthKit: Inventory System in your project? Builder integrates with your existing setup and will not overwrite it.ExtensibleNormal use requires no programming. For developers who need deeper customization, Builder exposes events, contracts and APIs for integrating custom gameplay and extending functionality.NorthKit EcosystemPart of the modular NorthKit line - the same items, save system and skins carry across every package:NorthKit: Inventory System (Free) - the foundation for items, inventory, pickup/drop and storage.NorthKit: Survival System - complete survival gameplay.NorthKit: Builder System - base-building with structural integrity (this package).Use the systems independently or combine them into a complete gameplay framework.Note: the character shown in the promotional video is not included.The demo scene uses a free CC0 character model.Asset uses third-party components under CC0 licenses; seeThird-Party Notices.txt in the package for details.Unity Version: Unity 6.4 or newer.Render Pipeline: Universal Render Pipeline (URP).Input: works with both the legacy Input Manager and the new Input System.Self-contained: the required Core layer and NorthKit: Inventory System are included; integrates with an existing Inventory install without overwriting it.Architecture: data-driven, Inspector-based configuration, modular components.Designed for existing projects: add it to your own character and controller.Localization: 5 languages with an Auto-Translate helper.Demo scene: included.Documentation: illustrated PDF user guide included.
