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