Check out these videos of a Babylon 5 space combat simulator video game that, sadly, was canceled only a month or two before it was set to be released in 1999/2000. The special effects still look great.
Rats.
Since no official video game has ever been made, you can make do with an unofficial free game, “I’ve Found Her.” There’s also a full mod of “Star Trek: Armada 2” which converts it all to the Babylon 5 universe.