Here is the full list of all 48 Battle Chasers: Nightwar achievements. It takes around 60-80 hours to unlock all of the achievements on Windows.
Finish the game on NG+
Complete 100% of the Bestiary
Craft 10 Rare Items
Start NG+
Craft 10 Epic Items
Unlock 100% of the Lore Book
Kill C'drall
Defeat the Pirate Captain
Acquire all of the Heroes' Ultimate Weapons
Kill all the Beastmaster's Targets
Unlock all Hero Skins
Complete all dungeons on Legendary difficulty
Craft 50 items
Complete the Mana Rifts
Reach level 30
Get Max Score in the Battle Arena
Craft a legendary item
Acquire 1 of the Heroes' Ultimate Weapons
Complete the Crimson Garden
Acquire 100,000 gold
Get all three chests in The Winding
Craft an item with less than 10% success chance
Complete the Fishiary
Unlock a Hero Skin
Get a Mid level score at the Battle Arena
Unlock All Battle Bursts
Complete Strongmont
Complete 50% of the Bestiary
Unlock 50% of the Lore Book
Complete Deadwatch
Acquire 200 Shadow Coins
Bring Alumon into the party
Kill 500 enemies
Complete The Dig
Unlock a Level 3 Battle Burst
Kill one of the Beastmaster's Targets
Craft an item
Complete Junktown
Find Monika
Find Knolan
Complete the Path of Fangs
Complete the Iron Outpost
Complete a dungeon on Legendary difficulty
Catch 50 Fish
Unlock a Beast Perk
Recover an item from the Mystery Cube
Catch an Epic Fish
Make it to the road