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