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