Procore Tools, now part of Unity, provides tools to make building in the Unity game engine easier. The tools include ProBuilder for building tools similar to Second Life and OpenSim with menu options for icons or text buttons and UV and texture tools. ProGrids allows building by numbers that snap to 3D and planar grids for precision. PolyBrush includes sculpting tools that work like modeling with clay and can be used for unique terrain and caves. ProBuilder VR enables building in Unity while wearing a VR headset.