King of the Colosseum terrain (11th ed.)

A parametric 11th-edition Warhammer 40K terrain set for the "King of the Colosseum" matched play scenario on a 36"×36" board. Includes four curved ring walls positioned at cardinal directions with diagonal gaps, four shorter 3/4-height walls on the diagonals, and four central L-shaped ruins with platforms. All pieces are FDM-printable and fully editable: adjust wall radius, thickness, height, and arc spans; toggle window openings and configure their size and position; customize ruin leg length, platform height and length, and corner offset.