A flat, single-level circular open ...

A flat, single-level circular open pavilion. All gameplay space stays on one flat ground floor, no islands, no elevation changes, no upper floor to walk on. Above the central area, add a single decorative open archway or canopy structure (not enclosed, no walls, open on all sides, purely architectural, nothing to walk on top of), supported by a few thin pillars around the edge. Color palette: clean smooth white blocks as the main material — use quartz block, smooth quartz, and white concrete (NOT wool, no rough/matte white). Combine with natural accents: stripped oak wood and oak planks for beams and trim, glass panes for light openings, and touches of greenery using vines and moss carpet/moss block growing along the pillars and the edge of the archway. Overall style: minimalist and geom