Okumanchouja

Released in November 1987 for the PC-8801, *Okumanchouja* is an investment simulation game from Cosmos Computer that challenged players to build a fortune in a volatile virtual economy. It distinguishes itself through diverse mechanics allowing users to trade stocks, bonds, and real estate while analyzing unfolding economic news and market indices. As an early example of desktop business simulations, the game offered a complex, educational experience that required strategic foresight to reach the elusive status of a billionaire. It remains a notable piece of 1980s software that captured the era's fascination with financial management and high-stakes market trading.

In this management simulation game, the player assumes the role of an ambitious investor determined to conquer a fictional market. You must strategically navigate a complex and fluctuating economy by trading a diverse portfolio of assets, including stocks, bonds, and real estate. By carefully monitoring economic trends and making shrewd financial decisions, your ultimate goal is to amass a vast fortune. Success in these high-stakes ventures will earn you the coveted title of "Billionaire."