You are a minimum-wage employee on a cheap public submarine. you work in you're office, monitor the submarine status, and adjust things to keep the sub going, because submarines are much more dangerous than boats. Why are you taking a sub? because of World War III happening on the surface. make sure you're careful with you're choices, and be careful with the quick-action air pressure valve. How to play: monitor the air pressure and adjust the valve to maintain a safe air pressure. if it drops too low or high, you're HP will go down. your HP is shown in red at the bottom left corner. You can take a pill taped to your wall to recover HP, with more health being recovered if you are at a lower HP. However, you can only do this once. occasionally the sub will get hit, or the drunk sub driver will hit something, so you need to monitor the hull percentage. if it gets hit, you can make a phone call by clicking on the phone to repair the hull. click on the sticky note next to it to view phone numbers. watch the fuel levels, and if it gets too low you can call the refueling team to refuel the engines. the signal determines how long it takes for the phone to be answered. however, you can only make 5 phone calls, so use them wisely and don't call for small inconveniences. occasionally, fume leaks will occur, indicated by a blinking red light. not the big alarm one on the top, but the little one under the distance meter. when a fume leak happens, click the small blue hump at the bottom of the screen, or press space, to put on an oxygen mask. click on it again to put it away. you only have so much reserve oxygen to use at a time, so use it carefully. the oxygen mask can also prevent you from taking damage from air pressure. the distance meter, a small toy submarine moving along a line to indicate how far along the drive you have made it. if your fuel runs out you will not move at all. once you make it to your destination, you win. do not let your health points(HP) run out, or your hull percentage(also HP) run out either or you will die. good luck, employee. if anything is confusing please let me know in the comments.