| Achievement | How to unlock
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| - Submit 10 rooms to the community (Secret)
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| - Complete all singleplayer levels and get a score above the game norm (Secret)
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| - Submit 5 rooms to the community (Secret)
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| - Submit the first room to the community
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| - Complete all the co-op levels
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| - Complete all co-op levels and get a score above the game norm (Secret)
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| - Complete the game in Hardcore mode
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| - Complete the Forest location
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| - Complete the seventh level with an above-the-norm score (Secret)
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| - Complete the Underground location
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| - Complete the eleventh level with an above-the-norm score (Secret)
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| - Complete the eighth level with an above-the-norm score (Secret)
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| - Complete a singleplayer level without dying
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- In Search Of Hopveyn (10)
| - Complete the fourth level with an above-the-norm score (Secret)
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| - Play a single co-op level
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| - Complete the first level with an above-the-norm score (Secret)
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| - Complete the second level with an above-the-norm score (Secret)
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| - Complete the third level with an above-the-norm score (Secret)
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| - Complete the Desert location
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| - Kill 1,000 monsters in singleplayer mode
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| - Complete a single-player level without dying in Hardcore mode
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| - Complete the ninth level with an above-the-norm score (Secret)
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| - Complete the sixth level with an above-the-norm score (Secret)
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| - Find the first secret in the single-player game
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| - Complete the Ice Caves location
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| - Find all in-game secrets within one playthrough (Secret)
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| - Complete the fifth level with an above-the-norm score (Secret)
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| - Complete the tenth level with an above-the-norm score (Secret)
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| - Complete the twelth level with an above-the-norm score (Secret)
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