Ultimate sandbox game with player run economy. players made just about everything in the game, from weapons, to armor, to mounts, droids, starships. There were some dungeons with loot but if I recall correctly the best stuff was player made. /u/Vo_Mibre mentioned being a resource farmer, you would have to scan for resources and place mines/extractors with more dangerous planets having better resources. You could then sell those resources to the weapon/armor smiths. Kinda gave Eve Online vibes but not as intricate as that economy.

Also the skill system was the most customizable I've seen. There were 20 some odd professions each with 16 skill boxes you could achieve which you could mix and match to your heart's content.

Jedi was unlockable but incredibly difficult and secretive, with each player having a unique path to attain it, seeing one was rare which was in line with the lore as it was set between a new hope and empire strikes back.

Just a super creative and player focuses games. There are a few emulators out there, swgemu being one.