Crossing over

Dosing

Hold the Injector and keep right-click held until the needle goes in, with a Serum Ampoule in your other hand or anywhere in your inventory. One dose keeps you Coherent for 20 minutes, and the Coherent icon counts down what is left.

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The HUD right after dosing, the Coherent effect icon and timer visible

While you are Coherent you can cross over in the Box, open the Corridor's doors and walk through them.

You are warned one minute and again ten seconds before a dose fades. What happens then depends on where you are: see The Corridor and Other worlds.

Decoherence: never dose twice in a hurry

Dosing again within 5 minutes of your last dose brings on Decoherence for those 5 minutes. Every three seconds your body slips up to four blocks sideways, with a wave of nausea. Milk does not help; wait it out or drink a Steady Draught. A slip never carries you through a wall, into lava or off a ledge.

Crossing in the Box

1. Dose yourself with the Serum.
2. Step into the Box.
3. Close the Box Door behind you. With the door shut and the structure sound, the Box is sealed, and it hums.
4. Stay inside. After five seconds the world fades out and you wake in the Corridor.

Opening the door, stepping out, losing the Serum or breaking the Box stops the crossing. Everyone who is dosed and inside a sealed Box crosses together, but each traveler wakes in their own Corridor.

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Mid-crossing: the screen fading out inside a sealed Box

Without the Serum

Stand in a sealed Box undosed and nothing happens, except a faint hum.