Let's say you have a planet about the size of Earth. It has three moons, each roughly the mass of one-third of the Earth's moon. Would this cause tides of different magnitude than those on Earth? Are there other ways in which this would affect the world?
Moons will be in a stable and resonant orbit, like the three first galileans.
Gravitational pulls will be weaker, even when the three moons are aligned due the distance to the planet compared than that pull of the Moon.
Nights will be darker than in Earth due no a full moon to reflect much light, that may make the nocturnal fauna are less dependent of eyesight, or still more specialized.
A civilization formed in your planet will have some nice ways to build calendars.