Perhaps I'm completely oblivious, but in the trailer, the shroomies are shown higher up inside of the mushroom. But I can't seem to get them there. Is there a ladder or staircase I can build?
You can tell your shroomies to walk on top of any solid block that has free space above it, just right-click on the upper side of the block with your shroomie selected. Shroomies can climb walls but not ceilings and they will only go to a space they can reach, so you might want to dig out some blocks if you want to reach the top of your mushroom's cap for example. However your shroomies should be able to move to some unobstructed blocks of the mushroom's stalk from the very beginning.
Some tips:
- First, try telling your shroomies to go on top of blocks that are midway up the mushroom's stalk, below the cap, to get the hang of it.
- You can dig a shaft up through the mushroom's stalk: dig your way inside the stalk, then use the mouse wheel to dig blocks that are aligned on the different layers.