Dai Sekiyu Ou

Released in 1983 by Brain Media, "Dai Sekiyu-O" (Great Oil King) is a management simulation game for up to four players that tasks you with competing for wealth through oil exploration in a small Arab nation. Players must make strategic decisions, such as purchasing drilling rights for 30 land plots based on a fortune teller's advice, selecting drilling equipment, managing facilities, and even dealing with guerrillas. Its unique design, which forces players to weigh the potential of oil fields against limited capital, captures the pioneering spirit of early 80s PC simulation games. It remains a unique representative of the PC-8801 era, perfectly balancing quick-play accessibility with the high-stakes tension of unpredictable resource development.

You act as an entrepreneur aspiring to become the great "Oil King" of a small Arab nation, aiming to build a massive fortune by discovering lucrative oil fields. Guided by the advice of a local fortune teller, you must purchase mining rights and procure equipment, while simultaneously managing facility security and handling unexpected crises. By wisely managing your limited funds and outperforming your rivals, your goal is to accumulate the most wealth and earn the ultimate title of "Great Oil King."