About the Game

Sim Builder is a construction-focused sandbox where building is the main game. Create homes, shape custom layouts, decorate every room, connect lots into a small town, and keep refining your ideas with tools designed for players who love building.

Build Without Fighting the Tools

Start from an empty grid and design the structure you want. Create shapes, place walls, add floors, build upward, dig downward, connect levels, and duplicate entire floors when you want to expand fast. Adjust props, windows, shapes, furniture and decoration so each build fits your idea instead of forcing you into a fixed template.

Create, Duplicate, Reuse

Group large objects, copy layouts, duplicate details and move pieces around as your project grows. Build a compact home, a tall apartment block, a pool area, a decorated interior, or a connected set of lots that becomes a small town.

Share Your Builds

Publish your creations through Steam Workshop, download builds made by other players, and place them in your own world.

Extra Game Modes

Alongside free building, Sim Builder includes optional systems where you can rent your constructions to citizens, expand the town and attract visitors. These modes add context and progression while keeping construction at the center of the experience.

Features

• Freeform house, building and lot construction
  
• Custom shapes, floors, basements and connected levels
  
• No fixed height or basement limit planned
  
• Pools, furniture, props and full decoration tools
  
• Adjustable props, windows and building pieces
  
• Group, copy and duplicate large objects or complete floors
  
• Connect lots into a small town
  
• Publish and download creations through Steam Workshop
  
• Optional rental, town expansion and visitor systems