12 achievements for 1000 Gamerscore
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Non omnis moriar
Turn a human into zombie
50 Gamerscore
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First blood
Die for the very first time
50 Gamerscore
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In my army now
Turn 10 soldiers into zombies
50 Gamerscore
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No leader is perfect
Lose a zombie
50 Gamerscore
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Summertime
Finish all summer levels
100 Gamerscore
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Getting started
Collect 20 stars
100 Gamerscore
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Playing well
Collect 40 stars
100 Gamerscore
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A perfectionist
Collect 60 stars
100 Gamerscore
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Speedrunner
Beat all summer levels with total time lower than 15 minutes
100 Gamerscore
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Snowrunner
Beat all winter levels with total time lower than 8 minutes
100 Gamerscore
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Ultimate zombie leader
Collect 90 stars
100 Gamerscore
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Winter has come
Finish all winter levels
100 Gamerscore