KARLUK

Eighty metres down, the drill hit something that wasn't rock. It was hollow, and we didn't build it.

There were seven of you. Now your crew are shapes in the snow with a dog tag at the throat, and you have a radio to rebuild piece by piece, a light that starts leaving at two in the afternoon, and a cold that doesn't forgive a single mistake.

Something else is out there. It follows blood, and it doesn't come out of the crevasses until dark.

Five trades, and each one can do a thing nobody else can. The soldier blows don't stop. The scientist who sees through walls. The medic who gets back up. The northerner who crosses without slowing down. And a fifth you have to earn.

The dead have names. Every dog tag you pick up is someone who comes home, and the memorial carries over between runs — what you bring back, you keep.

In the end a helicopter comes for you. There is also a second door, and it goes down. The game won't tell you which is the right one, because neither of them is.

Runs in your browser, phone included. English and Italian.