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Steam pressure management game

Boiler Room

Play Boiler Room free online. Six old steam boilers keep building pressure. Vent each one before its needle hits red, without draining the slow water tank.

Game locked Press play on the video to unlock it.

How to Play Boiler Room

You are on shift in an old basement boiler room with six copper boilers. Each one has a pressure gauge, and the needle creeps up all the time. If any needle reaches the red end of its gauge, that boiler bursts and the shift is over.

To bring a boiler back down, open its valve. Venting lets out a big puff of steam over half a second and drops the pressure a long way. Every vent uses water from the tank shown at the top, and the tank refills only slowly, so you cannot simply vent everything all the time.

You score 5 points for every second you survive. Venting a boiler that is nearly full earns a Close call bonus of 30 points, and venting one that is more than half full earns 10. Venting a cool boiler earns nothing and wastes water.

The boilers do not all heat at the same speed, and they all heat faster the longer your shift goes on. Now and then a boiler surges and its pressure shoots up three times faster for a few seconds, so keep an eye out for the one that suddenly starts racing.

Controls

Touch

  • Tap a boiler to open its valve.

Mouse

  • Click a boiler to open its valve.

Keyboard

  • Keys 1 to 6 vent the boilers, counting along the top row and then the bottom row. P or Escape pauses, M mutes.

Tips and Tricks

  • Let boilers climb past halfway before venting. Early vents waste water you will need later.
  • Keep a little water in reserve for surges. A surging boiler can go from safe to bursting very quickly.
  • Work in a rhythm: sweep your eyes across all six gauges, vent the highest, then sweep again.
  • Close calls score well, but only chase them when the tank is full enough to cover a mistake.

About the Game

Boiler Room is a juggling game in the spirit of spinning plates. There is only one action, opening a valve, and the whole challenge is deciding which boiler needs it most while the water supply holds you back.

It is drawn in warm brass and copper with hissing steam and twitching gauge needles, and it plays the same with a tap or the number keys. Your best score is kept in this browser and can go on the Top 10 board.

Boiler Room FAQ

What makes a boiler burst?

A boiler bursts when its pressure needle reaches the top of the gauge. One burst ends the shift.

Why can I not vent a boiler sometimes?

Each vent needs water from the tank. If the tank is too low, the valve will not open until it refills a little.

What is a boiler surge?

A surge makes one boiler build pressure three times faster for about three seconds. It glows so you can spot it.

How do I earn a Close call bonus?

Vent a boiler when its needle is at 85 percent or higher. It is worth 30 points, but it is risky.