蘑菇播種機 is a Structure exclusive to Don't Starve Together, introduced in A New Reign. 需要 8個腐爛物、5 個糞便、2個活木合成，且需要科學儀器製作原型。 After placing it, one can grow Red, Green, and Blue Caps or Spores on it. Mushrooms can be harvested at any time, and will yield different amounts of the mushroom depending on how much they grew. If a spore was planted, there is a 50% chance that it will release a spore when it hits the max level.
Harvesting the Planter less than one day after planting it will only yield the one mushroom that was planted. After a day, the amount of mushrooms growing on the Planter will increase, up to 4 mushrooms per harvest or 6 if a spore was used. They take 3.75 days to fully grow and can be harvested 4 times before it must be refueled with Living Logs.
Mushrooms can be grown through all seasons except Winter on the surface. During Winter, the mushrooms will all turn into Rot. However, it can still be grown all year round in the Caves, hence making it a reliable and sustainable method of Mushroom farming in Caves.
- A good method of using mushroom farming is to make camp near a green and blue Mushtree Forest, where one can collect spores of Blue Mushtrees in Winter and Green Mushtrees in Spring. This method yields of Blue Mushrooms for Health and Hunger and Green Mushrooms for Sanity, at a continuous cost of Living Logs.