Here is the full list of all 56 Warhammer Quest achievements worth 1,000 gamerscore.
Have a Marauder reach Level 6.
Have a Wood Elf Waywatcher reach Level 6.
Have a Dwarf Ironbreaker reach Level 6.
Have a Grey Wizard reach Level 6.
Have a Dwarf Trollslayer reach Level 6.
Have an Archmage reach Level 6.
Have a Warrior Priest reach Level 6.
Kill 500 Greenskins.
Kill 500 Skaven.
Kill 500 Critters.
Complete all settlement quests in Stirland.
Complete all settlement quests in Reikland.
Complete the final quest in Stirland.
Complete the final quest in Reikland.
Visit every settlement in Stirland.
Visit every settlement in Reikland.
A Warrior loses all of their wounds from one hit.
Sell over 200 items.
Kill a boss in one hit.
Kill each type of Critter.
Kill each type of Orc & Goblin.
Kill each type of Skaven.
Perform 7 consecutive Deathblows.
Knock a friendly warrior down instead of healing them.
Knock a friendly warrior down by going berserk.
A warrior is saved from permanent death by the Ring of Jade.
Complete an entire adventure without healing any warriors.
Taste a haunch of Old Nell.
Unlock all Critter journal entries.
Unlock all Orc & Goblin journal entries.
Unlock all Skaven journal entries.
Level the Ogre Irongut to level 6.
Level the Bright Wizard to level 6.
Level the Shadow Warrior to level 6.
Level the Marauder to level 8.
Level the Wood Elf Waywatcher to level 8.
Level the Dwarf Ironbreaker to level 8.
Level the Grey Wizard to level 8.
Level the Dwarf Trollslayer to level 8.
Level the Archmage to level 8.
Level the Warrior Priest to level 8.
Level the Ogre Irongut to level 8.
Level the Bright Wizard to level 8.
Level the Shadow Warrior to level 8.
Level any warrior to Level 7.
Admit that you failed to kill the Necromancer.
Complete the final quest in Averland.
Visit every settlement in Averland.
Answer all riddles correctly.
Complete all settlement quests in Averland.
Lose a Level 6 Warrior in Hardcore.
Level the Witch Hunter to level 6.
Level the Witch Hunter to level 8.
Finish the game on Casual.
Finish the game on Adventure.
Finish the game on Hardcore.