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