Here is the full list of all 26 The Guild 3 achievements.
Death through execution…
Be a judge at your own trial
Become the Sovereign
Become Sovereign without owning a single business building all the time
Play until the year 2000
Play until the year 1800
Have 1,000,000 coins
Play until late 1517 (Oct. 31, 1517)
At any one time, carry 10 wheat breads & 10 roast beefs in your inventory
Take part in multiplayer
Drink one Guntram's Brew
Have 100 employees at once
Equip your character with a horse cart
Have 24 business buildings at once
Have 50 employees at once
Be elected in a office
Play on the Hansa map
Earn 10,000 winning points in difficulty level "normal”
Earn 25,000 winning points in difficulty level "hard”
Earn 50,000 winning points in difficulty level "impossible"
learn the skills DarkSecret, Spellbound and Occultism3
Reach the title Patrician
Be in feud with 10 other dynasties at once
Marry
Have 10 secret lovers simultaneously while single
Produce your first product