OSES achievements

12 achievements on Steam

Rarest first. Published rarity by platform.

Each platform measures its own player population.Why that matters

Each platform calculates rarity from its own player population. These percentages are shown side by side but are not a controlled comparison. Percentages are shown exactly as each platform publishes them — Pyroblast does not recalculate them or mix player populations together.

Played it? See which of these you've earned
  • Out of stockSteam only

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

    Steam26%
  • Challenge acceptedSteam only

    Complete all the official map challenges.

    Steam26%
  • Sniper efficiencySteam only

    Kill 3 zombies with one shot using the sniper rifle

    Steam27%
  • Burning laserSteam only

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

    Steam27%
  • Shooting crazeSteam only

    Shoot 1,000 times on a single match.

    Steam28%
  • Money pileSteam only

    Accumulate 20,000 credits in the game.

    Steam28%
  • PacifistSteam only

    Complete a classic map without killing a single zombie.

    Steam29%
  • CreatorSteam only

    Upload a map to the workshop.

    Steam29%
  • Zombie extinctionSteam only

    Kill 1,000 zombies

    Steam29%
  • Close CallSteam only

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

    Steam31%
  • Safe distanceSteam only

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

    Steam36%
  • Fast triggerSteam only

    Kill 3 zombies in 3 seconds using the pistol

    Steam64%

Played OSES? See how many of these you've got.

  • Which ones you've earned — and which you're missing
  • Your rarest unlock, and where it ranks
  • Your whole history for this game, on one timeline
  • Steam, PlayStation, Xbox and Battle.net in one place
Connect Steam, PlayStation or Xbox

Free. Takes about a minute.

How rarity is calculated

Each platform calculates rarity from its own player population. These percentages are shown side by side but are not a controlled comparison.

  • Steam — Valve's published global unlock percentage across Steam owners of the game.

Percentages are shown exactly as each platform publishes them. Pyroblast does not recalculate them and does not mix player populations together. Data updated .