Full list of all 6 I commissioned some invisible people 0 achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Complete the game in its entirety.
Find everything hidden in the Orange Villa artwork.
Find everything hidden in the Relic City Ruins artwork.
Find everything hidden in the Cat Goes Shopping artwork.
Find everything hidden in the Cart And Well artwork.
Find everything hidden in the Cakes And Pies artwork.