Oh boy this might take a while.
First game:
DnD 3.0 transitioning to 3.5 part way through, lasted about 9 months, finished, party destroyed the afterlife and died in the process.
Played in:
DnD 3.5, run time 6 months, never finished, party last seen being eaten by gnolls (then WOW came out and the group went to shit)
DnD 3.5, run time 6 months, never finished, party last seen running errands for dragons (cancelled due to GM needing to finish their thesis)
Monsters and Other Childish things, run time 3 months, finished, party successfully prevented a great old one from being summoned by kicking the evil science teacher in the nuts.
DnD 3.5, run time 6 months, finished via TPK, GM could not balance an encounter to save his life, entire party killed outside the dungeon by a scorpion that no one in the party could scratch the DR on even with a crit.
DnD 3.5 Gestalt with all characters having bard as one of their classes, run time 3 crazy nights, finished with party inheriting the castle built on the moors of Rockenrol, fucking succubi and accidentally inventing cylons while trying to fix the toaster.
BESM, run time 5 years, intended run time 6 months,finished, characters destroyed the world and then re built it by punching god's corpse full of ideology after quint murdering their dad.
Scion, run time two years, finished, re-started and then promptly died after the re start, party managed to stop the fey or the combat wombat's psycho sister/nemisis from destroying the world due to the serial killer nobly sacrificing himself to destroy the doomsday artifact.
L5R in Space; run time 9 months, finished, party last seen emerging from the third day of thunder having managed to Pacific Rim 4 giga oni and save one member of the imperial line to serve as a figurehead for the new Iron Shogunate.
DnD 4th ed 6 months, finished, party last seen kicking Tiamat's teeth in because IDK whatever.
>Cont