Act 1 · Stabilise
The water is rising. Get the systems under control before it reaches the reactor.
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Co-op thriller · Game nightFree to play
Mayday
Dark Waters
A breach. Three thousand metres down. The surface link is dead. You are the crew — bring everyone home before the oxygen runs out.
Mayday: Dark Waters is a co-op thriller: you're the crew of a stricken deep-sea station, and only by working together do you reach the escape pod before the water rises, the oxygen drains and time runs out. The big screen is the control room; each phone is a private console with its own gauges and controls.
The twist is that no one sees the whole picture: your console holds one piece of the solution, your crewmate's another. You have to read out, coordinate and confirm each other under pressure — and you win or lose together. No app, no setup, completely free to try.
Three acts, one mission
It escalates on the big screen
Act 2 · Cascade
Systems fail at once. Prioritise, or lose everything.
Act 3 · Escape
The way up is open. Hold together — you're almost home.
How it plays
1
Scan in as crew
Create the mission and let everyone scan the QR code. Each phone becomes a console with its own gauges and controls — no app, no setup.
2
Talk it out under pressure
No one sees the whole picture: your console holds one piece, your crewmate's another. Read out, coordinate and confirm each other as the water rises and the oxygen falls on the big screen.
3
Save the mission together
Solve the chain of escalating crises before the clock hits zero. You win or lose together — it's the whole crew's victory.
Everyone plays together
Not every-player-for-themselves: the whole crew races the clock to solve the same crisis. You win or lose together.
Each holds a piece
The information is distributed — no one can solve it alone. That forces you to talk, and that's where the tension lives.
Living pressure
Rising water, draining oxygen and a master timer counting down in real time on the big screen. It feels urgent and live.
For game night
Longer and darker than a party game — built for the dedicated game night with friends. Free to try.
How many can play?
Mayday plays from 3 players up — best with 4-6, where the information is split enough that you really have to talk. Everyone joins with a QR or code, and roles rotate automatically.
Save the mission together
Gather the crew, dim the lights, and see if you make it back to the surface. Free to play — no app, no setup.
Or try the Murder Mystery →