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ORION: Prelude

Also known as ORION: Prelude, op, orion prelude

Work together to survive the devastating Dinosaur horde in huge, endless environments.

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Last update
13 May 2026
Players now
1

Latest update

Patch notes

ORION | 25 Year Anniversary

First and foremost, this is a very special day. The quarter century celebration for Orion, originally announced on August 25, 2000. Steam post image That is absolutely wild to think about! With the first commercial rele…

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Update history

Browse past updates and patch notes for this game.

408 updates

Older updates
Gallery

In-game media

Achievements

Community progression

Top picks from 251 Steam achievements, sorted by player unlock rates.

  • CavemanKill 25 dinosaurs53.4%
  • Welcome to PersistenceReach Level 148.9%
  • Bravo!Complete 10 Mission Objectives45.5%
  • Dino BomberKill 50 dinosaurs44.5%
  • Where's Waldo?Find a hidden vehicle41.4%
  • Manly ManKill 100 dinosaurs35.1%