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