Zones are themed regions with their own Brainrot roster, capture boxes, and progression gates. Each zone has its own Rot Center at the main hub where you heal your party and buy zone-correct Rot Boxes.
Grass Zone is the launch region with 20 catchable Brainrots including all five launch Epics. Unlocked from the very first spawn.
Ice Zone unlocks after the World One gate and introduces 9 cold-region Brainrots with a new box meta (Snowbox → Snowman → Miner → Frozen).
Keep entries useful by separating source-backed facts, player-tested strategy, and update timing.
Keep rarity, obtain method, abilities, and summary tied to official posts or repeatable in-game testing.
Link zones entries to matching builds, boss routes, and guide sections.
Keep tier values and obtain methods current after each game update.