Here is the full list of all 33 Stronghold 2: Steam Edition achievements.
Win 10 Multiplayer Games
Place at least one of every building type in the game
Use Every Punishment Building in a Game
Complete the Sim Campaign
Kill 10,000 Rats
Hold 100 Feasts
Complete the Conquest Trail
Collect 1000 Gong
Win 10 Skirmish Games vs. A.I.
Attend 100 Plays
Attend 100 Jousting Tournaments
Build 50 staple food Farm Buildings in one game
Build 25 Royal Food Buildings in one game
Recruit all Siege Equipment in a game
Win a Skirmish or Multiplayer Game, Recruiting only Ranged Troops
Win a Skirmish or Multiplayer Game, Recruiting only Melee Troops
Win a Skirmish or Multiplayer Game, Recruiting only Monks
Hold the Largest Feast Size
Recruit all Mercenary Camp troops in a game
Recruit all Barracks troops in a game
Complete the Evil path
Accumulate 250 Royal Food in one game
Complete the Good path
The Lord Gets Married!
Your Lord Dies
Kill 50 Wolves in one game
Accumulate 10,000 Gold in one game
Accumulate 1,000 Granary Food in one game
Win 50 Skirmish Games vs. A.I.
Win 50 Multiplayer Games
Consume 1,000 Ale in one game. (It's cleaner than the water)