Features

Mirror, Array and Radial Mirror in Effortless Building

Use Effortless Building Mod mirror, array and radial mirror tools to plan balanced facades, repeated building sections and circular designs.

3 min read Effortless Building Mod Guides
Illustration of a mirrored build and a radial symmetry pattern made with Effortless Building modifiers

A strong building pattern does not need to be placed block by block. Effortless Building Mod modifiers extend your original placement across a plane, along a direction or around a centre, making them useful for designs built from repeated elements.

Opening the modifier settings

Open modifier settings with NUMPAD +, or use the key assigned in your Controls menu. Configure the modifier position and extent before placing blocks, and use a small test to check the alignment.

Mirror: perfect symmetry across a plane

Mirror reflects your placements across a chosen plane. Position that plane through the centre of a gateway or facade, then work on one side while checking that the reflected details fit the other.

Mirror tips

  • Set the mirror centre on the exact middle block of your build before you start, so both halves line up.
  • Keep the mirror size slightly larger than the build; blocks placed outside it are not copied.

Array: repeat in a direction

Array repeats a placement along a configured direction. Choose the spacing and number of copies to establish a rhythm for columns, tunnel sections, bridge supports or a row of buildings.

Test one repeated section before combining an array with a larger shape. Confirm that the gap between copies leaves space for paths, decoration and neighbouring structures.

Radial Mirror: symmetry around a centre

Radial Mirror arranges copies around a centre point. Begin with a simple segment for a plaza, garden or tower and check how the segments meet before adding more complex detail.

Combining modifiers and build modes

Combine a shape with a modifier when both the outline and the repetition are predictable. Preview a mirrored wall or repeated line first, and use CTRL + Z to undo a placement that needs adjustment.

Survival and server limits

Repeated placements still require building materials in Survival. Multiplayer configuration may also limit modifier size; our server guide explains which settings belong to the administrator.