Garden and drinking water
With the garden the bunker produces part of its own food. In return you have to look after the water: watering uses drinking water and water is the first thing to run out.
Sow, water and harvest
The garden opens as you level up and has four plots. You sow a seed, water the plot and wait: hydroponic lettuce takes about 30 minutes and potatoes about 2 hours. When you harvest you get fresh vegetables and seeds to sow again.
Water matters
Watering a plot costs ten points of the bunker’s drinking water. If the water is low, you have to recharge it first. That is why it pays to build the water purifier, which makes water wear down 60% slower.
Vegetables for the rations
Fresh vegetables restore points of the rations system, just like a canned ration. It is a cheap way to keep the bunker fed without spending scrap.