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