Point Nemo

Something hit the platform in the night and took the diving bell with it. You wake up in Refuge Four, a hundred and twenty metres down, and nobody is coming to get you.

Your supervisor, Mara, is still up in the control room. She can see you on the hatch camera for the first ten metres. After that it's you, your compass and whatever lights you leave behind.

You're in saturation, so you can't just swim up. You climb slowly, refuge by refuge, resting in each one while the pressure comes down. Every refuge needs something from outside before you can move on: a scrubber cartridge, a full gas bottle, a battery. And the further you get from the platform, the less the water makes sense.

- Swim out on a bearing. Nothing on the screen points the way. You read the route card, check the compass on your wrist and swim into the dark.

- Leave a trail. Drop strobes on the way out so you can find them on the way back. The receiver tells you how far away the refuge is, but not which way.

- Watch your gas and your torch. Both run out. Kicking hard burns gas faster, panicking on a snagged line burns it faster still, and the current pushes you off your line while you work.

- Rest between dives. The refuges are warm and cramped. There's a bunk, a kettle and a radio, and Mara wants to talk.

- Things go wrong out there. The water silts up, the refuge lights go out while you're halfway home, and something big passes between you and your strobes.

- Five chapters and two endings. Keep a Logbook of your route, your finds and the salvage kit you scavenge, and replay any chapter you've reached.

Point Nemo is a first-person horror game about deep water and finding your way home. There's no combat, and nothing chases you. If you'd rather not drown, Calm Water mode keeps the dread and takes away the death.