The Mycelarium controls guide comes down to one gesture: press and hold on a point of the hypha, drag the mouse to set the direction and length of the new thread, then release. An arrow follows your cursor while you drag and shows the shot length in centimetres together with the water it will cost, so you can shorten it or turn it before you fire.
Mycelarium controls guide: the shot, the preview, the release
- Press and hold on a point of your existing hypha. That is where the new thread will start.
- Drag away from it. The arrow preview shows the shot length in centimetres and the water cost, for example a shot reading "91 cm" and "-3 WATER".
- Release to fire. The thread shoots out along the arrow.
The click target is small, and it is hardest to hit at night during rain — which is exactly when growth is fastest and you want to be firing the most shots. The demo ships without a full controls tutorial, and one is on the way, so the gesture itself is the thing to practice.
Keyboard shortcuts in the demo
The number row selects mushroom types: 1 picks the Spore Mushroom and 2 picks the Fly Mushroom. Those two are the only shortcuts confirmed in the demo, and no full key list has been published. Players have asked for extra hotkeys that would let a node be selected and grown again without a fresh click, particularly while it is raining and growth is at its fastest.
Moving the camera across a big network
Drag to pan and use the mouse wheel to zoom. The UPGRADES overlay also carries a RECENTRE button next to CLOSE, and its hint bar reads "DRAG TO PAN / WHEEL TO ZOOM / CLICK A NODE TO GROW IT". Once your network stretches in both directions, the way you move around it starts to matter, and that is covered in navigating a large mycelium network.
What Shot Range and Shot Width change
Shot Range stretches the result of the drag, and Shot Width thickens it. Both are nodes in the upgrade tree rather than separate controls, so the shape of a shot comes from what you have unlocked. The full branch layout is in the upgrade tree guide.