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