VETO
Torture to get paid, pay to survive. Control the hostages' cells from the monitor to force them to cough up the cash; but beware, if you concentrate too much on the screen, whatever lurks in the ventilation duct will get you.
TORTURE TO COLLECT; PAY TO SURVIVE.
You have a massive debt and time is running out. Your only way out is to lock yourself in this bunker, turn on the monitor, and force the hostages to cough up the cash. There's no room for mercy: if you're soft, you don't pay; if you're too harsh, you kill them and lose the money.
The control panel is your only tool. Manage three industrial-grade extortion systems installed in the cells: Flood, Electrical Overload, and Gas Leak. Monitor the oscilloscopes in real time to measure their vital signs. Find each hostage's breaking point to squeeze every last dollar out of them without giving them a heart attack.