QUBIC - Modular Building Designer

🎁Bonus: All QUBIC users get 50% off MicroWorld – Procedural Level Generator!

A great combo if you're working with procedural or modular environments.

QUBIC is a fast and intuitive editor tool for constructing architectural designs in Unity using modular prefabs.

QUBIC lets you draw rooms like in a map editor, and builds the entire structure around them: walls, floors, doors, windows, stairs, props and furniture.

Just draw or move rooms in the scene view - everything updates instantly. Doors and passages are placed automatically, furniture spawns according to rules, and multi-story buildings stay connected by logic, not by hand.

No need to place each wall, align doorways, or manually decorate interiors - QUBIC handles the structure so you can focus on your ideas.

⚡ Fast & Interactive Building

• Draw rooms and corridors directly in the scene
• Instant live updates on any change (movement, resize, style)
• Smart room logic automatically places doors, arches, rails, windows

🏗 Modular Construction

• Grid-based snapping for accurate placement
• Supports multi-floor structures, with logic across levels
• Customizable room styles with easy switching

🪑 Interior Generation

• Rule-based furniture spawning (curtains, beds, carpets, etc.)
• Auto prop placement per room/floor
• Support for bridges, balconies, atriums, rails, fences, rooftops

🧠 Smart Prefab System

• One-click prefab setup using tag rules - no coding
• Edit prefabs directly in-place and see instant updates
• Style override for individual rooms or entire buildings

🧭 Advanced Tools

• Debug view for placement rules and cell logic
• Different door/connection strategies (e.g., labyrinth, tree, fully connected)
• Isometric view support for easier 2.5D game layout

Designed For

• Level designers working with modular kits
• Game prototypes that need quick interior spaces
• Dungeon/corridor design tools
• Architectural previsualization

[Discord] [Documentation]