Here is the full list of all 100 Spirit Hunters: Infinite Horde achievements.
Defeat all 27 bosses
Have 20,000 gold in a run
Ultimate power reached! Obliterate the Horde!
Lunar Caverns brutal challenge unlocked
Twilight Oasis brutal challenge unlocked
The Hinterlands brutal challenge unlocked
Northwood brutal challenge unlocked
The Cemetery brutal challenge unlocked
Spine Dunes brutal challenge unlocked
Lunar Caverns hard challenge unlocked
The Lunar Caverns boss Megnacrom was defeated
Darkmoon Grove brutal challenge unlocked
Viper Village brutal challenge unlocked
Win 3 Sickle Challenges
30 total challenges
Desert Ruins brutal challenge unlocked
Win 1 challenge with each hero
Purchased 400 upgrades in the Divinity Web
The pet Blocker unlocked and obtainable in battle
The pet Nomicron unlocked and obtainable in battle
Hardcore mode unlocked
Win 3 McDiggins Challenges
Purchased 350 upgrades in the Divinity Web
The Lunar Caverns battle is now unlocked
Northwood Skull 2 challenge unlocked
The Northwood boss Yak Colossus was defeated
The pet Big Tex unlocked and obtainable in battle
Unlocked the Hero Sickle
Purchased 300 upgrades in the Divinity Web
The pet Webster unlocked and obtainable in battle
Twilight Oasis Skull 2 challenge unlocked
Win 3 Hugo Challenges
20 total challenges
The Twilight Oasis boss Oniclaw was defeated
Spine Dunes Skull 2 challenge unlocked
The Jinn ability was unlocked
Win 3 Shakpana Challenges
The Spine Dunes boss Tempest was defeated
Win 3 Maxine Challenges
Have 5 max level pets in a run
Purchased 250 upgrades in the Divinity Web
The pet Trove unlocked and obtainable in battle
Viper Village Skull 2 challenge unlocked
Win 3 Conrad Challenges
The Viper Village boss Viper Shaman was defeated
The Cemetery Skull 2 challenge unlocked
The Northwood Battle is now unlocked in the Highlands
The Twilight Oasis Battle is now unlocked in the Desert
The Cemetery Boss Demise was defeated
Unlocked the Hero McDiggins
Purchased 200 upgrades in the Divinity Web
The pet WhooDoo unlocked and obtainable in battle
Win 3 Vivian Challenges
10 total challenges
Win 3 Magnus Challenges
The pet Chicon Rad unlocked and obtainable in battle
Purchased 150 upgrades in the Divinity Web
The Viper Village battle is now unlocked in the Highlands
The pet Pack Rat unlocked and obtainable in battle
Purchased 125 upgrades in the Divinity Web
The pet Rupert unlocked and obtainable in battle
5 total challenges
Darkmoon Grove Skull 2 challenge unlocked
Unlocked the Hero Shakpana
The pet Madrake unlocked and obtainable in battle
Purchased 100 upgrades in the Divinity Web
The pet CiCi unlocked and obtainable in battle
The pet Beacon unlocked and obtainable in battle
The Shadow Shuriken ability was unlocked
The Cemetery battle is now unlocked in the Dark Forest
The pet Crys unlocked and obtainable in battle
The Darkmoon Grove boss Tombstone was defeated
Purchased 75 upgrades in the Divinity Web
The pet Lock Pick unlocked and obtainable in battle
The Spine Dunes battle is now unlocked in the Desert
The Hinterlands Skull 2 challenge unlocked
Desert Ruins Skull 2 challenge unlocked
The Darkmoon Grove battle is now unlocked in the Dark Forest
Unlocked the hero Hugo
The Grand Hex ability was unlocked
The Magic Mine ability was unlocked
The Poison Cloud ability was unlocked
The Hinterlands boss Horse Knight was defeated
Purchased 50 upgrades in the Divinity Web
Purchased 40 upgrades in the Divinity Web
The Shock Bolt ability was unlocked
The pet Hearty unlocked and obtainable in battle
1 Ledger challenge
Purchased 30 upgrades in the Divinity Web
The Hinterlands battle is now unlocked in the Highlands
Pets unlocked on the battlefield. Unlocked Slayther, Driller, MagSlime, Flash and Scoop
Purchased 20 upgrades in the Divinity Web
Unlocked the hero Maxine
Unlocked the hero Conrad
Purchased 10 upgrades in the Divinity Web
Purchased 5 upgrades in the Divinity Web
The Tornado ability was unlocked
The Bone Shot ability was unlocked
The Tangle Vines ability was unlocked
The Desert Ruins boss Horned Beetle was defeated