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