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