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