Here is the full list of all 30 Antihero achievements.
Win "The Palace" online
Win a match with 3 bribes
Play a match online
Win a match online
Win "The Big City" online
Trap an opponent thief
Win a match with 2 blackmails
Evict 12 urchins in a match
Defeat Frannie
Evict a full business that was trapped
Defeat Gashford
Get 15 gold in a single turn
Defeat Mathilde
Defeat Lygrave
Complete level 1
Complete the game
Complete all levels on Hard
Win 10 matches online
Win 100 matches online
Win 300 matches online
Win "The Wharf" online
Win "The Masquerade" online
Play an opponent who already has the Black Plague
Win an online match in 10 or fewer turns
Get 3 victory points in a turn
Buy all guild upgrades in a single match
Kill 4 assassination contracts in a single match
Trap your opponent 5 times in a single match
Kill a max-level gang with an assassin
Employ 2 max-level gangs simultaneously