Full list of all 47 Tiny Tina's Wonderlands achievements. It takes around 40-50 hours to unlock all of the achievements in the base game on Windows.
The base game contains 39 achievements, and there are 4 DLC packs containing 8 achievements.
Complete a Chaos Chamber run.
Complete all side quests.
Purchase the final tier of any inventory upgrade.
Enchant or re-enchant an item.
Complete "Fatebreaker".
Complete "Soul Purpose".
Complete "The Ditcher".
Complete every Dungeon Door in the Overworld.
Reach level 40.
Complete "The Son of a Witch".
Have at least 1,000,000 gold.
Have at least 3,000 total Loot Luck.
Complete "Mortal Coil".
Complete "The Trial of Crooked-Eye Phil".
Reach level 30.
Trade with another player.
Complete "Ballad of Bones".
Complete "Walk the Stalk".
Complete 20 side quests.
Find an enchanted legendary item in the wild.
Reach level 20.
Have at least 100,000 gold.
Complete "Goblins Tired of Forced Oppression" and "The Slayer of Vorcanar".
Revive a partner.
Complete "Emotion of the Ocean".
Complete "Thy Bard, with a Vengeance".
Reach level 10.
Complete "A Hard Day's Knight".
Stun an enemy chasing you in the Overworld.
Complete "Hero of Brighthoof".
Get a Death Save off a badass or a boss.
Pick up and redeem a cosmetic item.
Complete "Bunkers & Badasses".
Pick up a lore scroll.
Purchase every inventory upgrade.
Clear out 10 encampments in the Overworld.
Reach Chaos level 10.
Reach Chaos level 20.
Unlock all other achievements.
Complete "Best Chums".
Defeat "Chums" the Old God at their highest difficulty level.
Complete "Pesto Chango".
Defeat Imelda the Sand Witch at their highest difficulty level.
Complete "Puns and Crimeishment".
Defeat Fyodor the Soul Warden at their highest difficulty level.
Complete "Outer Daemons".
Defeat Redmourne the Trivern at their highest difficulty level.