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Data from Steam — Steam Web API Terms of Use. Last updated .
| Achievement | How to unlock | Unlocked by | Rarity |
|---|---|---|---|
| Hot flush | Complete "El Diablo" chapter in "Normal" difficulty | 5% | Rare |
| Collateral damage | Get zombies deer to kill 20 Zombies. | 5% | Rare |
| Four-handed massacre | Complete a local or online challenge with another player. | 5.9% | Rare |
| Discoverer VI | Enter Ascuas Island | 6.6% | Rare |
| Picky monkeys | Complete the 12 secondary quests of Kovac's monkeys. | 7.3% | Rare |
| Kill 20 zombies in less than 5 seconds. | 9.5% | Rare | |
| Kill a volcanologist zombie without electricity | 9.9% | Rare | |
| Kill 5 monsters in a row with a bullet or an arrow. | 11.2% | Rare | |
| Enter Cenizas Island | 12.1% | Rare | |
| Complete the story mode in "Normal" difficulty. | 13.1% | Rare | |
| Perform 5 instant kills in less than 15 seconds. | 17.3% | Rare | |
| Kill 2000 zombies | 17.3% | Rare | |
| Perform 100 instant kills. | 18.6% | Rare |