Full list of all 145 Across the Obelisk achievements.
The base game contains 129 achievements, and there are 2 DLC packs containing 16 achievements.
Find the Happy Owl founder's runes
Find a new member for the Tsnemo crew
Unlock the pet: Mozzy
Accidentally burns the baker's son
Unlock the pet: Asmody
Kill the boss: Fred
Unlock the pet: Daley
Unlock the pet: Chumpy
Unlock the pet: Chompy
Unlock the pet: Champy
Make a bet with the crocomafia and win
Fight for the crocomen after visiting their village
Feed the harpies
Unlock the character: Nezglekt
Show who is the strongest on the battlefield
Upgrade 500 cards
Sit on the mysterious throne
Save the baker's son
Unlock the pet: Lianta
Unlock the pet: Oculy
Unlock the pet: Sharpy
Kill the boss: Matriarch
Unlock the pet: Betty
Kill the boss: Ursur
Gain 100000 gold
Unlock the pet: Slimy
Fight for the lizardmen after visiting their village
Unlock the character: Zek
Spend 250 supply on town upgrades
Gain 100000 shards
Unlock the character: Malukah
Unlock the character: Sylvie
Repair the altar to its former glory
Discover what cultists throw into the pit
Master Madness Level 1
Unlock the character: Bree
Read what happened in the void
Kill the boss: Minotaur
Kill the boss: Graendor
Kill the boss: Belphyor
Craft 250 cards
Stack 200 Crack charges
Achieve Rank 35 with a Hero
Kill 50 Boss monsters
Stack 40 Insane charges
Have a big feast at the Happy Owl
Unlock the pet: Flamy
Play 5 games
Stack 200 Fury charges
Kill 500 monsters
Stack 40 Sanctify charges
Stack 50 Crack charges
Unlock the character: Gustav
Become the master craftsman's apprentice
Stack 50 Fury charges
Unlock the pet: Stormy
Stack 40 Bless charges
Stack 200 Chill charges
Stack 200 Burns charges
Unlock the character: Wilbur
Achieve Rank 20 with a Hero
Unlock the character: Heiner
Unlock 90 warrior cards
Become the new champion of the arena
Kill the boss: Astarios
Buy 50 items
Craft 100 cards
Stack 200 Spark charges
Stack 200 Bleed charges
Unlock 90 healer cards
Unlock 90 scout cards
Unlock the character: Thuls
Kill the boss: Tulah
Defeat the game
Kill the boss: Lord Hanshek
Stack 200 Poison charges
Unlock 90 mage cards
Stack 50 Poison charges
Spend 30 supply on town upgrades
Stack 50 Bleed charges
Kill 10 Boss monsters
Kill the boss: Ignidoh
Kill 200 monsters
Unlock the character: Cornelius
Kill the boss: Erekhal
Stack 50 Burn charges
Kill the boss: Elder Dryad
Deal 400 damage with a single hit
Deal 150 damage with a single hit
Unlock 60 healer cards
Kill the boss: Scorn
Stack 40 Regeneration charges
Unlock the character: Grukli
Stack 200 Block charges
Unlock 60 warrior cards
Unlock 60 scout cards
Unlock 60 mage cards
Kill the boss: Rhodogor
Gain 5000 shards
Stack 50 Spark charges
Kill the boss: Faeborg
Stack 40 Thorns charges
Stack 50 Chill charges
Deal 50 damage with a single hit
Gain 5000 gold
Give the two beggars enough money to take the ship
Unlock the character: Ottis
Kill the boss: Yogger
Achieve Rank 5 with a Hero
Unlock 30 warrior cards
Upgrade 100 cards
Unlock 30 healer cards
Unlock 30 scout cards
Unlock 30 mage cards
Craft 5 cards
Buy 5 items
Spend 1 supply on town upgrades
Kill the boss: Ylmer
Upgrade 5 cards
Claim 1 treasure
Kill 20 monsters
Stack 50 Block charges
Claim 25 treasures
Play 1 game in cooperative multiplayer
Unlock the pet: Orby
Deliver the Rime of the Ancient Mariner
Kill the boss: Ratone
Kill the boss: DT-800
Discover the secret chamber under the sands of Ulminin
Unlock the pet: Fenny
Survive Basthet's ordeal.
Fulfill the vision and complete the ancient mural
Play a game at the ancient machine
Unlock the character: Navalea
Summon the three scarabs and let them run free
Get the Djinn to corrupt you a ring
Make a wish to the Djinn
Unlock the character: Laia
Kill the boss: Mortis
Kill the boss: Sandworm
Unlock the pet: Holy Cuby
Unlock the pet: Dark Cuby