Game Pile: Gazillionaire
In 1994, the videogame company Lavamind released the game Gazillionaire, which was in its purest form a sort of spreadsheet software with a random number generator built in. A bunch of trading companies kick off at the same point in time engaging in transport and trade. You go to a planet, which has its own weirdo economy and its own current supply and demand of goods, buy what you want, sell what you want, and head off to a new location to make a profit on those goods. There are all layers of complexity here, with things like warehousing and random events along the way, and every planet has its own specialised services and its own stock market you can use to invest in.
And it looks
like
this.
