This simulator shows why equally skilled jobs pay differently once working conditions diverge. Two employers need the same skill, but one job is safe and pleasant while the other carries a chosen level of danger or discomfort. At an identical wage, workers overwhelmingly prefer the pleasant job, so the employer offering the unpleasant one must add a wage premium — a compensating differential — to attract willing applicants. Each simulated worker has a private threshold for how much extra pay would make the risk worth it; raising the offered premium pulls in progressively more of them, even the most risk-averse. Raising the job's undesirability level pushes every worker's threshold higher, so the premium required to fill all the open positions rises with it — a direct, adjustable demonstration of how the size of a compensating differential tracks the severity of the underlying condition and the collective risk tolerance of the labor pool.