| Achievement | How to unlock
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| 1000 Yard | Achieve 100% completion.
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| Amazing Chest Ahead | Encounter the chest mimic.
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| Annihilation | Fully clear the Contamination Area mission.
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| Blood Meridian | Fully clear the Ghost Town mission.
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| Bravo Foxtrot Golf | Fully upgrade your inventory.
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| Col Do Ma Ma Daqua | Unlock the Toxic River challenge.
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| Dawn of the Dead | Fully clear the Burial Grounds mission.
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| Devil Trigger | Unlock the Infernal Gate challenge.
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| Don't Deal With the Devil | Complete the Toxic River challenge.
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| Galatians 5:20 | Unlock the Warlock.
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| Greed is Good | Buy out the shop.
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| I Have Friends Everywhere | Visit the secret shop.
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| Icon of Sin | Defeat the Supreme Overseer boss.
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| Jamais Vu | Pop the red balloon.
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| Locked and Loaded | Open the shooting range.
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| More Room to Doom | Upgrade your inventory once.
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| Night of the Living Dead | Complete the Burial Grounds mission.
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| Original Sin | Defeat the Foetid Freak boss.
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| Press Start | Complete the tutorial.
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| Quiet Mountain | Fully clear the Mountain Temple mission.
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| Revelation 20:14 | Unlock the Salamander.
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| Risky Rescue | Unlock a shortcut.
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| SSS | Complete the Infernal Gate challenge.
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| Scholar of the First Sin | Defeat the Enhanced Prototype boss.
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| Sweet Home | Fully clear the Old Mansion mission.
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| System Shock | Complete the Contamination Area mission.
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| Temple of Doom | Complete the Mountain Temple mission.
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| The House of the Dead | Complete the Old Mansion mission.
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| The Root of All Evil | Visit the shop.
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| The Suicide of Kras Mazov | Buy out the secret shop.
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| There Will Be Blood | Complete the Ghost Town mission.
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| Thessalonians 5:3 | Unlock the Ranger.
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| Trophy Trouble | Unlock all shortcuts.
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| Vault 101 | Open the vault.
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| Vault Dweller | Fill the vault.
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