| Achievement | How to unlock
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| Alakazam | Unlock all the spells in the book.
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| Blood ties | Save all the memories in nightmare mode.
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| Bodyguard | Defeat the first Boss without letting any of your companions get electrocuted.
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| Catch them all! | Unlock all of your companions' upgrades in the book.
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| Comfort Eagle | Pass all the special battles.
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| Diet! | Win the "Ice trap" battle without using the Greedy companion.
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| Easter! | Gulp a dozen "Shell" shadows down with your Greedy companions.
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| Exterminator | Kill 2500 enemies.
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| Fireworks | Cast at least once each 10 spells during a battle and win it.
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| Get physical | Win the "Underneath the Christmas tree" battle using only Collector and Pulsor companions. (Spells are allowed)
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| Great Explorer | Fully explore the William's memories map.
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| Hearty trencherman | Win "The endless corridor" battle using only Collector and Greedy companions. (Spells are allowed)
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| Mana fountain | Get 250 magic resource in any battle.
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| Minesweeper | Destroy 10 "Bomb" shadows before they explode.
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| Moment of truth | Defeat the last Boss.
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| Moneywise | Sell 30 companions during a battle and win it.
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| No harm done! | Defeat the second Boss without using the Doc companion or the "Care" spell.
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| Painful memory | Defeat the second Boss.
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| Pinchpenny | Reach 2500 light resource in any battle.
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| Puffed out | Defeat the third Boss without using the "Sacrifice" spell.
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| Rainbow Warrior | Win "The slabs waterfall" battle using only Collector and Rainbow companions. (Spells are allowed)
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| Rescue team | Watch the credits till the end.
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| Resuscitation | Defeat the first Boss.
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| Sadist | Make it so that 4 Collector companions get destroyed in "The snowmen's waltz" battle.
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| Shadow killer | Kill 5000 enemies.
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| Short range | Win the "Dark woods" battle without using any range boost locations.
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| Sorcerer's Apprentice | Cast 20 spells during a battle and win it.
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| Spring cleaning | Kill 1000 enemies.
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| Thrifty | Reach 1000 light resource in any battle.
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| War Chief | Use 10 different companions during a battle and win it.
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