Work together to survive the devastating Dinosaur horde in huge, endless environments.
User reviews:
Mixed (534 reviews) - 60% of the 534 user reviews in the last 30 days are positive.
Mostly Positive (27,445 reviews) - 75% of the 27,445 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.

1 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:

28 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 (534 reviews)
Mostly Positive (27,445 reviews)
Recently Posted
6.5 hrs
Posted: August 25
Bought it for 0.66 cents for no reason now it's free to play.
Helpful? Yes No Funny
34.2 hrs
Posted: August 24
Very good Dinosaur Horde game even though there are other modes most players choose to play either survival or conquest. There are three classes in the game and each has a special ability the Assault class has a jet pack that allows him to go reach higher areas easier than other classes, the Support class has a healing gun that should be self explanitory, and the Recon class can go you guessed it invisible. Gameplay is nice no glitches unless you have a bad internet connection so check your connection before you play any mode. Weapon choice is decent in this game with one assault rifles, two sub machine guns, two light machine guns, two shotguns, two melee weapons, three sniper rifles, and a plethora of pistols which can be bought in temporarily in any game mode and if you die you lose them but if you remember where you died or you use a custom made loadout from the weapons you've unlocked. Now onto the special weapons better known as (to seasoned players at least) adrenaline weapons which can be unlocked each class has two and a universal adrenaline weapon that can be used by all three classes which is a bow yeah a bow what are the odds; The assualt can use a grenade launcher and a rocket launcher, support can use a flamethrower and a chain gun, and the recon can use a laser rifle and a energy carbine. Customization is really the only low point in the game unless you have money with the choice to only change the skin of a weapon when you start the game you have two armor and weapon skin colors black or purple you have to buy more aromor and weapons skins except for one for that one you just have to get 75 achievements for it. There are helmets in the game with one being unlocked after getting 50 achievements but like the armor and weapon skins they have to be bought as well. Taunts are in the same boat as weapon and armor colors so yeah it's more of a pay to look good kind of game. The community in the game is also very quiet not many will use the in game chat function but no one will randomly start insulting someone so it's about 50/50. Final Verdict a 7/10 for hours of fun in survival and conquest, decent weapon choice, and the fact that when a class reaches level 60 that class has unlocked every weapon that is best suited to them do this for every class and you will have 10 weapons unlocked and ready to use for any class it loses points for mediocre community, low customization, no story what so ever, and the fact that you can't unlock every weapon
Helpful? Yes No Funny
1.2 hrs
Posted: August 24
i cant play it seid i had to donlode what i had
Helpful? Yes No Funny
7.8 hrs
Posted: August 24
Not worth it, not even for free.
Helpful? Yes No Funny
1.2 hrs
Posted: August 24
Helpful? Yes No Funny
3.8 hrs
Posted: August 24
I play this game is not to good but funn if i bored that i is when i don t' do. and i say this too hunk da trunk and right this for da good! so that you see this and tink that this game is good-becus it are fgood for the price it has on the game you buy for little price and when i say that i meen this game and not otehr game becaus i tell yo u its good forr only its price not more because it need mor to doo. i am not scuuby so me dont solv this case easy like them crew that he in so i only say this from my heart and brain not from sience or other sorcec like math, and otter stuff like cemistry and other that i think not of now that. i only whant to say this for not longningn this review forr too lon....
Helpful? Yes No Funny
Petrut #Sayajin.
3.2 hrs
Posted: August 24
I buy this game and now it's free to play wtf DUDE i want money back please.
Helpful? Yes No Funny
[ ]
16.4 hrs
Posted: August 24
Very good game, I bought it years ago, it went Free to Play, I don't mind, really, if it didn't I would never have played it again with friends, so here's a summary of good and bad things about it.

The good :
+ Lots of skills
+ Lots of different weapons to choose from
+ Really fun and all
+ The addition of PvP with playable dinosaur was a god damn great idea
+ Different classes with very different styles available
+ Runs greatly on every PC ever, really, if it doesn't work blame your PC and moreover what you installed on it

The bad :
- I do not understand Melee :C
- What the actual ♥♥♥♥ is going on ?

Welp, that's it, I don't have much to say about it, see you later on Orion ! :3
Helpful? Yes No Funny
3.1 hrs
Posted: August 24
Can those who payed for this game get something special?
Helpful? Yes No Funny
J-J Kit
6.3 hrs
Posted: August 24
I bought this game back when it was about $1 on sale (standard price was about $3-$5)
at the time i bought the game it was a decent one would give it about a 6/10 but for it to go from $15 to $5 to $1 then down to free to play the game must have be doing poorly now but being its free to play now i would still say if your wanting a decent dino fps
but for it to have become a free to play game from a paid game 1 of 2 things happened
either the maker completely gave up on updates to the game
or the game has been doing very poorly
but i would still say give the game a try at least its free now so if you dont like it but its no real loss money wise and it does not require a really powerful computer to play it
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
68 of 95 people (72%) found this review helpful
5 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
67 of 109 people (61%) found this review helpful
12 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
21 of 32 people (66%) 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
13 of 18 people (72%) found this review helpful
1 person 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
10 of 13 people (77%) found this review helpful
1 person 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
3 of 3 people (100%) found this review helpful
1 person found this review funny
9.2 hrs on record
Posted: August 20
Halo meets cod:zombies meets Jurassic Park. would play again!
Was this review helpful? Yes No Funny
3 of 3 people (100%) found this review helpful
2 people found this review funny
10.9 hrs on record
Posted: August 20
So bad, it's good. (REALLY)
Was this review helpful? Yes No Funny
2 of 2 people (100%) found this review helpful
2 people found this review funny
1.3 hrs on record
Posted: August 20
Have some weird bugs and really lame shooting animations but other than that it's an okay game where you get to shoot dinosaurs with a bunch of other people.
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2 of 2 people (100%) found this review helpful
1 person 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 -.-"
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3 of 4 people (75%) found this review helpful
1 person 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
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