Work together to survive the devastating Dinosaur horde in huge, endless environments.
User reviews:
Mixed (574 reviews) - 58% of the 574 user reviews in the last 30 days are positive.
Mostly Positive (27,517 reviews) - 75% of the 27,517 user reviews for this game are positive.
Release Date: Apr 15, 2013

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Play ORION: Prelude

Free to Play

Recent updates View all (156)

August 16

Lobbies = Fixed

There was an issue reported on the Steam back end that affected a few other games including our own. They were able to address it immediately (thanks Steam!) and if you have any more issues feel free to post here or contact us directly and we will do our best to address it as fast as possible.

3 comments Read more

August 10

F2P Is Live!

ORION: Prelude is Free-2-Play!
Dinosaurs, Jetpacks & Mechs
PvP, Co-Op,& Dueling

All we want now is for you and all your friends to have as much fun as possible. No pay walls, no pay 2 win, no ♥♥♥♥♥♥♥t no gimmicks. The whole game for free as was + brand new Year 4 Update content.

Our new game, The ORION Project will also convert to a Free-2-Play model on August 25, 2016 to celebrate the game series 16th birthday. You can learn more about The ORION Project here:

35 comments Read more


“An instant classic.”
Steam Review

“Best transformation of a game I've ever seen.”
Steam Review

“I am completely addicted.”
Steam Review

About This Game

'ORION: Prelude' is an indie Sci-Fi shooter (FPS/TPS) that seamlessly blends together incredible visuals and addictive combat. It puts you and your friends together into intense, cinematic battles using some of the most incredible weaponry and amazing vehicles in which you must work or compete against one another to accomplish mission objectives, explore giant worlds and survive the devastating Dinosaur Horde.

In addition to the return of the adventurous, survival-based cooperative gameplay and retro-inspired Arena Combat, 'ORION: Prelude' features massive, Open World Cooperative and PvPvE.

*Previous version names include ORION: Dino Beatdown (2012) and ORION: Dino Horde (2013).

Supporting up to a variety of game modes, including:
  • Survival (Objective)
  • Slaughter (Duration)
  • Rampage (Playable Dinosaurs)
  • Prehistoric (Custom Variable)

Supporting up to 10 players and offering 2 game modes:
  • Conquest (Cooperative - 5 Players)
  • Vital (PvPvE - 10 Players)

Supporting up to 10 players and offering 3 cooperative game modes:
  • Free-For-All (Deathmatch)
  • Elimination (Stealth)
  • King of the Hill (Territory)
  • Gun Game (Ladder Climb)
  • Instagib (Twitch Reflex)
  • Vital (Open World)

Supporting up to 10 players and offering 3 unique game modes:
  • 1v1 Duel (4 Playlers - Tournament)
  • FFA Duel (4 Players - FFA)
  • Team Duel (5v5)

Key Features:

  • Open World Gameplay
  • Cooperative & Competitive Gameplay
  • Dueling & Melee Combat Gameplay
  • 1st Person / 3rd Person Hybrid Gameplay
  • 15 Game Modes
  • 50+ Weapons & Gear
  • 30 Augmentations (Mutators)
  • 20+ Multiplayer Maps
  • 7 Vehicles
  • Full Weather System
  • Persistence & Player Progression (150 Levels)
  • Class-Based Gameplay & Player Loadouts
  • Statistics & Leaderboards
  • Lobbies, Matchmaking & Server Browser
  • Player Store (Cosmetics)
  • Rewards & Unlockables
  • Real-time Dynamic Day/Night Cycles
  • 10 Dinosaurs (All Playable)
  • 250+ Steam Achievements
  • 12 Steam Trading Cards
  • Steam Big Picture Mode Support
  • Bots & Offline Play
  • Tutorial System
  • SDK & Steam Workshop (Custom Maps)

System Requirements

    • OS:Windows Vista SP2 32-Bit
    • Processor:AMD Athlon X2 2.8GHZ / Intel Core 2 Duo 2.4 GHZ
    • Memory:3 GB RAM
    • Graphics:256 MB Graphics Memory (SM3)
    • DirectX®:9.0c
    • Hard Drive:8 GB HD space
    • Sound:DirectX 9 Compatible
    • OS:Win 7 / Win 8 (64-Bit)
    • Processor:AMD 4-Core / Intel 4-Core
    • Memory:4 GB RAM
    • Graphics:512 MB Graphics Memory (SM 3)
    • DirectX®:9.0c
    • Hard Drive:8 GB HD space
    • Sound:DirectX 9 Compatible
    • Other Requirements:Broadband Internet connection
Customer reviews
Customer Review system updated! Learn more
Mixed (574 reviews)
Mostly Positive (27,517 reviews)
Recently Posted
The Punisher
0.1 hrs
Posted: August 29
I won it in a giveaway. I still want money back.
Helpful? Yes No Funny
2.1 hrs
Posted: August 29
Helpful? Yes No Funny
4.8 hrs
Posted: August 29
Give me my euro back!
Helpful? Yes No Funny
2.1 hrs
Posted: August 28
Worst $1 i've ever spent.
Helpful? Yes No Funny
★ Joshua969
0.2 hrs
Posted: August 28
Its free now...thats how ♥♥♥♥ it is
Helpful? Yes No Funny
0.6 hrs
Posted: August 28
Played A while Back When It had a free weekend deal thing ( Before this F2P version) It was Okay Then. Now it is bad. I think people who paid for the first game should get a refund. (not including me)
Helpful? Yes No Funny
DJ pigeon
28.0 hrs
Posted: August 28
Helpful? Yes No Funny
2.5 hrs
Posted: August 28
Be the only dude with guns to kill dinosaurs

They realize how good I am

Everybody in the server team up on me
1434/10 would play again
Helpful? Yes No Funny
Crying Jordan
0.4 hrs
Posted: August 28
Piece of ♥♥♥♥.
Helpful? Yes No Funny
1.4 hrs
Posted: August 28
Do i play press gaym?
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
90 of 126 people (71%) found this review helpful
7 people found this review funny
Not Recommended
7.3 hrs on record
Posted: August 10
After 3 years and 3 Steam releases, I expected an improvement on the controversial game I had heard so much about.

First released as Orion: Dino Beatdown for $15, then Orion: Dino Horde which dropped to $1, and now Orion: Prelude which has recently gone Free-to-Play. This is where I entered the picture.

I had first heard about this game with such catchy headlines as "The Worst Video Game EVER!" and "Is Orion: Prelude still the Worst Game Ever?". I then saw trailers which showed the game in its new polished state and heard the feedback stating it was "the best turn-around in video game history!". Outside of these he-said/she-said discusions I didn't pay much attention to this game. "It's Halo with Dinosaurs" they said, "Nonsense!" I'd say. It wasn't until the game literally screamed "I'm free now, please play me! It would be very nice if you would play me!"

So I did, and while a awaited the game's download I decided to research the critisim of this game. What I saw was a buggy unfinished mess, multiple instances of theft of video game assets by the developers, and radical reactions to negative feedback by the creator. But that was for the older versions of the game, right?

What I played in Prelude, and what I saw in Dino Beatdown/Horde, I could not distinguish. I really like the idea of this game and I wish it all worked, but ultimately the game lacks polish: it's horribly optimized, animations are amateur at best, Ai is atrocious, and weapon handling is nonexistant.

The saddest part is, it seems this game will never be improved because the developers refuse any meaningful critisim and/or are incapable of coding a better functioning game. They have big plans ahead, but I don't know how they can realize them if they can't manage to properly make this.

Try the game if you want, you're free to do so, but as someone who wanted to like this game I warn you of what I have experienced.


In light of some recent criticism I have decided to put a bit more time into this game,
but my recommendation stays the same.

To put into perspective: You hear your friend talking about this guy but all he keeps saying is how much of an ***hole he is. You think to yourself "he can't be that bad". Then you finally meet him and the first thing he does is slap you across the face. Do you stick around to see how many more times he hits you?

This is a bad game, there is nothing objective about that. Programing is bad, animations are sometimes nonexistant, and it's difficult to run on some of the best computers. "Can you still have fun with it?" Of course you can! There is nothing stopping you from enjoying a bad game. I myself enjoy several bad games. That does not excuse the corners that this game has cut.

There is a difference between a good game and a game that you as an individual can enjoy. Because I and many others do not enjoy this game, that does not render our opinions irrelevent.

You Are Allowed To Like Bad Games! but after the amount of time I have played I cannot recommend this game.
Was this review helpful? Yes No Funny
79 of 130 people (61%) found this review helpful
15 people found this review funny
Not Recommended
0.7 hrs on record
Posted: July 29
Game is ok. Devs are shady little children who can't handle negative feedback or make original content.
3/10 needs new dog models
Was this review helpful? Yes No Funny
29 of 47 people (62%) found this review helpful
6 people found this review funny
16.9 hrs on record
Posted: August 11
I spent over 5 dollars on this game for other people...

I say money well spent, I enjoyed this game.
Was this review helpful? Yes No Funny
17 of 25 people (68%) found this review helpful
2 people found this review funny
2.2 hrs on record
Posted: August 12
is it a perfect game? Nope not at all BUT it is very fun i bought it back when it was $0.99 and even though its now f2p i still dont regret it, its a fun fps game to just shoot some dinosaurs trying to stop your generators and you have a large assortment of vehicles aswell as weapons also if you play most of your games offline and solo like i do it completely supports that so grab some guns and blast some space dinos!

(if there is one bad thing to be said its the micro-transaction store for cosmetics im not a fan of stuff like that in any game at all but aside from that its still a solid fun game to play)
Was this review helpful? Yes No Funny
14 of 20 people (70%) found this review helpful
2 people found this review funny
692.2 hrs on record
Posted: August 14
they should have made it free 2 play, the minute they put that money harvesting store in the game.

trek industries a.k.a. spiral studios a.k.a. Dave Prassell, isn't doing anybody any favors.

the game however, is still pretty good. i recommend it, begrudgingly. at least, now, you can't beat the price.

still, the company that made it is just as shady as any other video game company because they are ALL shady.
it's an inherently shady industry, so you can't show me a game publisher who is not shady because there aren't any of those.
Was this review helpful? Yes No Funny
7 of 9 people (78%) found this review helpful
3 people found this review funny
Not Recommended
3.6 hrs on record
Posted: August 23
yeah, bought a full game several years ago and now i have a f2p moneygrab game instead that doesn't even show up in my libary anymore!
i call this a huge scam and a facekick for everyone who ever spent their money on that game!!!
i demand a compensation other than some ingame crap i can't even access for this -.-"
Was this review helpful? Yes No Funny
8 of 11 people (73%) found this review helpful
3 people found this review funny
Not Recommended
0.7 hrs on record
Posted: August 18
♥♥♥♥ i buy this game before now it's free
Was this review helpful? Yes No Funny
7 of 10 people (70%) found this review helpful
2 people found this review funny
Not Recommended
7.0 hrs on record
Posted: August 21
it used to be good, and i dont mind it being free to play although i bought it, BUT at least give us stuff for supporting the game?
♥♥♥♥ you too developers
Was this review helpful? Yes No Funny
3 of 3 people (100%) found this review helpful
2 people found this review funny
Not Recommended
0.3 hrs on record
Posted: August 27
Basic wave survival and was not worth the money and that is why they recently went F2P. Try it if you want because you cant loose anything.
Was this review helpful? Yes No Funny
1 of 1 people (100%) found this review helpful
0.7 hrs on record
Posted: August 24
For others I guess it could be ok, more in F2P way. For me was a bad game overall. So I'll be never going back into playing this. But maybe you can check this and see how it suits you.

This seems to be the kind of game you need to try and see the results.
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