Full list of all 48 The Messenger achievements. It takes around 15-20 hours to unlock all of the achievements in the base game on Windows.
The base game contains 40 achievements, and there is 1 DLC pack containing 8 achievements.
Defeat Octo
Defeat the Voodoo Totem
Defeat the Demon General... again
Win the race with a perfect score
Make your first purchase at the Craftman's Corner
Meet the voodoo mask
Unclog the Money Sink
Accept 'THE DEAL'