Station arboretum: seeds float free until you tether them as towers; gravity-flips send everything drifting, and vine-towers snag enemies in zero-g. Signature: flip gravity to drown the swarm in the vacuum-side thicket.
Steel corridors with greenery orbs, floating water droplets, viewport starfields, grow-light magenta.
Seeds drift free through the corridors. Click a drifting seed to tether it as a tower — BLOOM guns, VINE snags and drags pests back, GROW-LIGHT scorches in an aura. Click a tower again to upgrade it. Pests crawl the conveyor toward the Arboretum Heart — your lives. When the GRAV meter is full, hit SPACE / G to flip gravity: loose seeds, water droplets and every unanchored pest fall up into the vacuum-side thicket and get mulched. Pests grow claws the longer they walk, and snared pests hold on — time your flip for a fresh swarm.