In addition to campaigns, I have also run many one-night games we call "delves". Some of the details are sketchy because I didn't take notes or do these summaries until months later.
D&D 5E
Country Necro
Wolf Moon
Beginners' game 2
Serenity
Without a Trace
Running out of Patience
The Last Flight of the Themis
In the Money
Earning Xian Jin the Hard Way
Stories from Serenity Valley
Cargo of Misery
Running out of Patience, redo
Fox the Badger
No Time to Rest, redo
Into the 'Verse
Running out of Patience, v3.0
Breakdown on Regina
Better Days A group of delves using same ship and captain and mostly the same crew
Cargo Recovery
Rivalry
Crystals from Aberdeen
Deadliest Cargo
Boon Companions
Reaver Detour
Cash on Delivery
We also ran several games using the Serenity RPG rules for a Cowboy Bebop anime based game, some of them started to be a consistent campaign group
Hot Pursuit
Rendezvous on Mars
Boarding Party
What Happens in New Vegas...
Shell Game
Venus Concerto Foxtrot
Freebird
And Space:1889
Dinosaur Hunt
A game for the AD Police/Bubblegum Crisis Anime setting using Cyberpunk 2020
Power Armor Smackdown
AD&D
Honeymoon in Opal
Tower in the Woods
A Quest
Betrayed!
Lost Songs
Oriental Adventures
Plague of Zombies
Naga Forest
Cyberpunk 2020
Breakout
Bahamas Extraction
Kobolds ate my Baby!
What's for Lunch?
Bride for King Torg(All Hail King Torg!)
Star Trek
Memories of Doomsday
Star Wars D6
Escape
Return to Hoth
Egg Hunt
Wookies Amok
Head Games