Here is the full list of all 50 Risen achievements.
300,000 gold coins obtained
"Power struggle" completed
"Pease and order" completed
All crystals learned
100% achieved in three attributes
100 locks picked
2000 monsters killed
"Defeat the Titan!" completed
"The Inquisitor is dead!" completed
"Find all the teleport stones" completed
250 quests completed
100,000 gold coins obtained
Every close combat talent learned
"Secure the volcano keep" completed
"The fourth seal of rune magic" completed
100% achieved in an attribute
25 Jest spells used
"The Titan trap" completed
Every ranged combat talent learned
50 pockets picked
20 tool bags collected in inventory
"A package for the Don" completed
"Esteban's return to Harbour Town" completed
"The mystery of the eastern temple" completed
"Where is Patty?" completed
10 treasures found
"Find all the vassal rings" completed
100 weapons forged
20 chickens killed
500 monsters killed
Rescued the orge, Drok
"The legend of the Gyrger" completed
Find Helmar's murderer completed
Every Crafting profession learned
Caught by the tideworm 10 times
Fell to death 3 times
"The sons of Tilda" completed
"The test of Master Ignatius" completed
20 wild boars killed
Seven grave moths killed
1000 gold coins obtained
"Medicine for everyone" completed
The farmer's sick wife completed
"Woman beater" completed
Found first bow
10 grain plants collected
"Rescue Sara from the wilderbess" completed
Found first map in the game
Found way out of the first ruin
First monster killed