Patch 0.15.0: Ruins, secret romance, apiaries, and terrariums

Direct answer

The official 0.15.0 update completed the Mines storyline with the Ruins biome, added the Lost & Found Box, apiaries, terrariums, Mistril tools, new perks, and a secret bachelorette route. It also added new furniture, Museum sets, fish-trap systems, and a set of quality-of-life and crash fixes.

Ruins and new production systems

The Breaking the Ruins Seal questline opens the Ruins biome and completes the Mines storyline. Arena Floors require the player to defeat all monsters before proceeding, while Void Material can begin appearing after the questline starts. The update also adds the Sacred Light spell, ten Museum sets and rewards, and new monsters including Flying Tome, Living Griffin Statue, Purple Flame Spirit, Void Cat, and Pink Skull Sapling.

Apiaries produce a Flower request after three days and then Honey based on Bee rarity. Terrariums use non-Bee insects to produce a Crop or Forageable request and then Fish Bait or Bug Pheromones based on rarity. The Fish Trap on the far west beach accepts bait and can produce a unique fish and furniture set after the Beach Bridge is repaired.

Progression and compatibility boundary

The Lost & Found Box collects floating items outside the Mines once per week, and the secret bachelorette unlocks after the Mines questline. The Auto-Feeder, Mini-Mill, Seed Maker, Artifact Replicator, Perpetual Soup Pot, and Tesserae Tree each have their own shop, upgrade, Museum, or quest context.

These are 0.15.0 historical facts. Do not treat the named rank, quest, or upgrade conditions as a current 1.0.x checklist without current evidence.

Next step

Check the installed version and current patch notes before following an old Ruins or production-system guide. Keep a local backup before testing old save or mod workarounds.