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 "Ballad of Bones".
Revive a partner.
Complete "Walk the Stalk".
Complete 20 side quests.
Complete "Emotion of the Ocean".
Reach level 20.
Complete "Thy Bard, with a Vengeance".
Find an enchanted legendary item in the wild.
Have at least 100,000 gold.
Complete "Goblins Tired of Forced Oppression" and "The Slayer of Vorcanar".
Reach level 10.
Complete "A Hard Day's Knight".
Complete "Hero of Brighthoof".
Get a Death Save off a badass or a boss.
Stun an enemy chasing you in the Overworld.
Complete "Bunkers & Badasses".
Pick up and redeem a cosmetic item.
Pick up a lore scroll.
Reach level 30.
Reach level 40.
Complete "Mortal Coil".
Complete "The Son of a Witch".
Complete "Soul Purpose".
Complete "Fatebreaker".
Complete "The Trial of Crooked-Eye Phil".
Complete "The Ditcher".
Complete all side quests.
Have at least 1,000,000 gold.
Purchase the final tier of any inventory upgrade.
Purchase every inventory upgrade.
Trade with another player.
Have at least 3,000 total Loot Luck.
Enchant or re-enchant an item.
Complete every Dungeon Door in the Overworld.
Clear out 10 encampments in the Overworld.
Complete a Chaos Chamber run.
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.