Tundra Bulb
Tundra Bulb is a mobile ambient-ecology app set in a sealed glass worldlet under lichen tundra and aurora nights. The worldlet cycles weather on its own clock, and each visit you may introduce exactly ONE element — a seed, stone, creature, or spring — by dragging it into place. Between visits the ecology simulates on its own: elements spread, compete, and form symbioses, so your one-choice-per-visit rule turns every terrarium into a unique long-run story. Condensation runs down the glass, weather cycles inside, and introduced elements visibly interact across visits. Each run ends with a worldlet portrait card and an ecology timeline you can share to the community or replay. Fully offline, touch-only, no login, with English and Chinese locales.
Created by haojie.huang
