Outbreak Zero

Outbreak Zero

18 achievements
Ultra Rare×18

About Outbreak Zero's achievements

Outbreak Zero has 18 Steam achievements, 18 of them ultra-rare — unlocked by under 5% of players. The rarest is "Knowledge is Power", earned by just 0.4% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement
0.4%
of players earned "Knowledge is Power"

Community Ratings

No ratings yet
Difficulty—
Easy → Brutal
Enjoyment—
Meh → Loved it
Grindiness—
No grind → Huge grind
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All Outbreak Zero achievements

18 achievements
Knowledge is Power
Knowledge is Power
Read all documents scattered throughout the game
Ultra Rare0.4%
Auditory Explorer
Auditory Explorer
Find and listen to all audio logs in the game.
Ultra Rare0.4%
Fallen Giant
Fallen Giant
Defeat the first boss.
Ultra Rare0.4%
Fallen Giant Flawless Victory
Fallen Giant Flawless Victory
Defeat the first boss without taking any damage.
Ultra Rare0.4%
Broken Beast
Broken Beast
Defeat the boss.
Ultra Rare0.4%
Another One Down
Another One Down
Defeat the boss without taking any damage.
Ultra Rare0.4%
The Price of Progress
The Price of Progress
Defeat the third boss. Bosses fall. You don’t.
Ultra Rare0.4%
One Step from Madness
One Step from Madness
Defeat the boss without taking any damage.
Ultra Rare0.4%
Breaking the Chain
Breaking the Chain
You’re not surviving anymore. You’re winning.
Ultra Rare0.4%
You Call That a Boss?
You Call That a Boss?
Another beast down. You’re more monster than man now.
Ultra Rare0.4%
Six Feet Under
Six Feet Under
"Dead things stay dead — when you're the one killing them.
Ultra Rare0.4%
King of the Dead
King of the Dead
Everything died. Except you.
Ultra Rare0.4%
Outbreak Zero: Mastered
Outbreak Zero: Mastered
You walked through hell untouched. Even death bowed.
Ultra Rare0.4%
Professional Snooper
Professional Snooper
Unlock all lockers in the game.
Ultra Rare0.4%
Outbreak Zero
Outbreak Zero
Finish the game.
Ultra Rare0.4%
Outbreak Zero: Hardcore
Outbreak Zero: Hardcore
Finish the game on Hardcore Mode.
Ultra Rare0.4%
Flawless Execution
Flawless Execution
Kill the first zombie without taking any damage
Ultra Rare0.8%
Outbreak Zero Begins
Outbreak Zero Begins
Outbreak Zero Begins
Ultra Rare1.2%