Here is the full list of all 22 Bardbarian achievements. It takes around 10-12 hours to unlock all of the achievements on Windows.
Do all the things! 100% Completion.
Complete the "night" chapter.
Complete the entire campaign from start to finish without dying.
Unlock the mythical 4th party slot.
Post a score in the Day 2 Insane Mode leaderboard. The most exclusive of all leaderboards.
Send 2500 enemies to their grave.
Go as fast as you possibly can. (Hint: Upgrade + Song)
Complete the "evening" chapter.
Loot 100,000 gold from the corpses of your fallen enemies.
Waltz into Wave 10 and rescue him from that Fire Golem.
Complete the "noon" chapter.
Complete the "morning" chapter.
You look lonely, have you considered a pet to keep you company?
Appears randomly in Survival mode. May luck be with you.
Start a new game in Insane Mode.
Last for 3 minutes in survival mode.
Play and submit your best time for Survival Mode.
Upgrade a unit to MAX level.
Fact: There are 1609 meters in a mile.
Reach 3000m in Escape mode, and he's yours.
Don't get hit!
Something's cooking on the title screen.