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