I've added every single game I remember playing. I've only added DLC or expansions that either changed the gameplay a lot (like World of Warcraft expansions) or added so much content that it could be considered another game (like Monster Hunter World: Iceborne).
Badges
Epic Gamer
Played 1000+ games
GOTY '23
Participated in the 2023 Game of the Year Event
GOTY '22
Participated in the 2022 Game of the Year Event
2 Years of Service
Being part of the Backloggd community for 2 years
Popular
Gained 15+ followers
On Schedule
Journaled games once a day for a week straight
Organized
Created a list folder with 5+ lists
Loved
Gained 100+ total review likes
Roadtrip
Voted for at least 3 features on the roadmap
Donor
Liked 50+ reviews / lists
Best Friends
Become mutual friends with at least 3 others
Gone Gold
Received 5+ likes on a review while featured on the front page
Liked
Gained 10+ total review likes
GOTY '21
Participated in the 2021 Game of the Year Event
Noticed
Gained 3+ followers
Elite Gamer
Played 500+ games
Gamer
Played 250+ games
N00b
Played 100+ games