Science Fiction

Here we go... My first fediverse comment, and it's to say that to this day I think "Tie Fighter" is my all-time favorite video game.

Jedi Knight 2, the multiplayer lightsaber duels were one of the best gaming experiences I ever had.

Star Wars The Old Republic. Basically KOTOR with mmo elements. You could play it as a single player game if you wanted, with a lot of story content.
But doing flash points and PvP with my friends was fun too. Buying strongholds and flagships then decorating them was fun as well.

I want to say X-Wing vs Tie-Fighter, but if I'm being honest it was probably Dark Forces.

How can you have just one? How can you compare them?

Tie Fighter, XvT and X-Wing Alliance are some of the greatest space sims to ever grace a computer.
Dark Forces brought FPS to Star Wars! Jedi Outcast was a transcendent experience when it came out - the dismemberment! The lightsaber trails!
KOTOR is an absolutely classic Star Wars story in the same style as the OT, and KOTOR2 is a fantastic deconstruction of classic Star Wars, both with well written and memorable characters.
OG Battlefront and Battlefront 2 brought us some awesome squad shooter goodness!
Jedi Outcast and Survivor giving us some awesome modern Star Wars.

Rogue Squadron, Empire At War, Republic Commando, Episode 1 Racer, even the two MMOs Star Wars Galaxies and SWTOR, all solid games. There's no way I could pick just one.

Jedi Knight series.
The lightsaber combat was so much fun.

Original Knights of the Old Republic easily takes the first place for me. Fallen Order and Academy comes 2nd and 3rd.

Ahh what I wouldn't give for another Obsidian SW RPG.

Super Star Wars, Return of the Jedi on Game Boy. Not because it's a good game, far from it. It's because I'm old and have memories of trying to play this. With dying batteries and at an awkward angles so I could get light on the screen. I just accidentally found out it had this awesome Super Game Boy border too.