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