If you like business management types of games of the likes of the old Koei games such as Uncharted Waters/New Horizons, this game might be right up your alley. Action game fans... probably should look elsewhere.
Unlike Uncharted Waters, you control a whole company, safely ensconced in your corporate headquarters, while directing whole fleets of ships to run trade routes. Once you build up a set routine route, you can even just automate the route, so that the ship sails between up to around a dozen ports buying and selling the same things over and over for a profit.
The best aspect of the game, however, is how much of a subtle, but ever-growing impact you have on the world with your actions. The more you trade with a city, the more it prospers economically, the more its population rises, the more it has to trade, but the more it needs to trade to get products it doesn't manufacture, itself. Then, you can outright build a branch office in a city, build up your own personal industries, and outright control the whole city.
It's dirt cheap at sale prices, and if you have any interest in the genre at all, it's worth looking into before going into more pricey, more modern versions of the same game.