Fallout 2 Part 2

 Vec at the Din

Fallout 2 Part 1

The substantially improved sequel with tons more content and way more in the way of choice.

Fallout Part 3 (Finale)

 Did most everything of note, got all the good endings that are possible to get.

It's not actually possible to get a good ending for the Hub or the Followers due to missing/bugged quests, even though the good endings for both are canon to the series.  There are several fan patches that attempt to fix this, however.

Fallout Part 2

 All the middle-game stuff to get the good gear.

Fallout Part 1

 A revisit of the game-changing RPG!