A tag-style mode played over a real route. One player runs, the others hunt, and both sides have their own checkpoints to clear. It is the one mode you can play entirely alone, by handing either role to an NPC.
In the lobby you take the Runner's role or join the Hunters. If nobody else is available, an NPC can take either side, which makes this the mode to play on a solo walk.
Both roles have checkpoints of their own, so neither side can simply chase or flee: the pursuit happens while both are still working through a route.
Once the Runner has completed their checkpoints, reaching the Tower wins the game. Getting caught before that means losing it.
Complete your own checkpoints, then reach the Tower without being caught.
Stay within 10 metres of the Runner for at least 10 seconds. That is a catch.