Hydroponic Garden

The Hydroponic Garden is an Iron Teeth exclusive building that cultivates Mushrooms and Algae in a controlled indoor environment, completely independent of weather, irrigation, and sunlight. Unlocked for 750 Science Points, this 3x3 structure requires 1 to 2 workers and is built from 20 Planks, 10 Gears, and 5 Metal Parts. What makes the Hydroponic Garden truly unique is its stackable design: multiple gardens can be built on top of one another, giving it the best food-per-surface-area ratio of any food production building in the game. This vertical farming capability makes it indispensable for dense urban districts where horizontal space is at a premium.

Mushrooms take 192 hours (8 days) to grow, while Algae requires 288 hours (12 days) per harvest cycle. Output depends entirely on worker productivity, so keeping your beavers well-fed, rested, and happy directly impacts your yields. A single Hydroponic Garden at maximum efficiency can produce enough Mushrooms to support roughly 200 beavers, or enough Algae for nearly 380 beavers. Mushrooms feed into the Fermenter to create Fermented Mushrooms (4 Mushrooms yield 16 servings), requiring approximately 8 Hydroponic Gardens per Fermenter running this recipe. Algae combines with Canola Oil in the Food Factory to produce Algae Rations (6 per batch), one of the most efficient food items in the game.

The Hydroponic Garden does not need irrigation in the traditional sense, but it does require water goods delivered to the building. Unlike field crops grown by the Farmhouse, these indoor crops are completely drought-proof, making them an excellent insurance policy against dry seasons. The storage capacity equals exactly one harvest, so you must empty the garden (via haulers and nearby warehouses) before the next cycle completes or risk wasted production. Stack multiple gardens vertically, place warehouses nearby for quick pickup, and pair them with Fermenters or Food Factories to create a self-contained, weather-resistant food production hub that keeps your colony fed regardless of water conditions outside.