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 "The Ditcher".
Complete "The Son of a Witch".
Stun an enemy chasing you in the Overworld.
Complete "Mortal Coil".
Complete "Walk the Stalk".
Reach level 20.
Complete "Ballad of Bones".
Complete "Goblins Tired of Forced Oppression" and "The Slayer of Vorcanar".
Have at least 100,000 gold.
Complete "Emotion of the Ocean".
Complete "Thy Bard, with a Vengeance".
Reach level 10.
Get a Death Save off a badass or a boss.
Complete "A Hard Day's Knight".
Complete "Hero of Brighthoof".
Pick up and redeem a cosmetic item.
Complete "Bunkers & Badasses".
Pick up a lore scroll.
Reach level 30.
Reach level 40.
Complete "Soul Purpose".
Complete "Fatebreaker".
Complete "The Trial of Crooked-Eye Phil".
Complete 20 side quests.
Complete all side quests.
Revive a partner.
Find an enchanted legendary item in the wild.
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.