OSES

12 achievements

Rare×9

Uncommon×2

Common×1

About OSES's achievements

OSES has 12 Steam achievements. The rarest is "Challenge accepted", earned by just 26.1% of players. Below is the complete achievement list with global rarity and a full achievement difficulty breakdown.

Rarest achievement

26.1%

of players earned "Challenge accepted"

🗺️ Community guides & walkthroughs

Community Ratings

No ratings yet

Difficulty—

Easy → Brutal

Enjoyment—

Meh → Loved it

Grindiness—

No grind → Huge grind

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All OSES achievements

12 achievements

Challenge accepted

Complete all the official map challenges.

Rare26.1%

Out of stock

Buy all of the items from the in-game shop.

Rare26.1%

Sniper efficiency

Kill 3 zombies with one shot using the sniper rifle

Rare27.0%

Burning laser

Apply damage to 5 zombies without releasing the trigger using the laser gun.

Rare27.5%

Money pile

Accumulate 20,000 credits in the game.

Rare28.0%

Shooting craze

Shoot 1,000 times on a single match.

Rare28.0%

Pacifist

Complete a classic map without killing a single zombie.

Rare29.0%

Zombie extinction

Kill 1,000 zombies

Rare29.5%

Creator

Upload a map to the workshop.

Rare29.5%

Close Call

Kill a zombie from a really short distance using the shotgun.

Uncommon31.5%

Safe distance

Kill a zombie from a long distance using the assault rifle.

Uncommon35.9%

Fast trigger

Kill 3 zombies in 3 seconds using the pistol

Common64.0%