Work together to survive the devastating Dinosaur horde in huge, endless environments.
User reviews: Mostly Positive (16,612 reviews)
Release Date: May 4, 2012

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"It really doesnt feel like a complete game but its cheap and its fun for a few hours with friends. fun and silly gameplay shooting dinosaurs."

Recent updates View all (44)

January 26

ORION: Prelude v2.0 - Now Available!

Version 2.0, the latest game update for ORION: Prelude on Steam is now available. Restart your Steam Client to automatically begin downloading.

( ORION: Prelude - Version 2.0 Changelog )
  • Added: Improved game performance + LOD’s to most game models.
  • Added: Last 5 dinosaurs at the Side Objective now visible on HUD.
  • Added: Small credit gain for Stasis Fury with Medic Gun.
  • Added: Healing based credits now display on screen.
  • Added: Automatic toggle for Xbox Icons when using a Gamepad/Mouse.
  • Added: Covan, Depth and Eden to PvP game modes.
  • Fixed: Issues with Lives in Rampage not working as intended.
  • Fixed: “Saved” message displaying at incorrect times.
  • Fixed: Useless Teammate achievement unlocking mechanics improved.
  • Fixed: Negative numbers displaying with Utility Gun use.
  • Fixed: Grenade and cloaking issues.
  • Fixed: Heal/Ammo percents now visible with Crosshairs disabled.
  • Adjusted: Reduced Rham amounts in Slaughter.
  • Adjusted: Removed money perks from CTF.
  • Adjusted: Dinosaurs now have infinite lives in Rampage.
  • Adjusted: Renamed bots to ‘PreludeBot’.
  • Adjusted: Rhamphorynchus air speed reduced by 30%.
  • Adjusted: Player HUD for better organization and performance.

You can view all change logs for ORION: Prelude here:

4 comments Read more

January 23

Trek Industries | January 2015 Update

We have been working on a variety of projects these last few months, including updating our Steam title, ORION: Prelude. On top of this we are starting up additional productions including our next game and a TV show that follows behind the scenes development and world travels.

[ Prelude Version 2.0 ]
We are getting ready to launch v2.0 which will include a significant amount of changes, improvements and optimization. The current expected release date is February 2015. More details about that patch and the community-inspired changes can be found here.

[ Our Next Title - Steam, PS4, Xbox One ]
In addition, we are also in full production on our next official game title which is targeting a 2015 release on Steam, Playstation 4 and Xbox One. We haven’t released *too* many details about this project but we typically post most sneak-peeks on the Facebook page.

[ TV Show ]
Because of this we are doing something large in 2015, which is something new for me personally, especially. We are going to have cameras rolling typically 24/7 and will be doing a TV Show of sorts showing behind the scenes development on these new titles as well as our world travels.

[ Now Hiring + Musicians ]
Most of the developers from around the world are participating in this. Locations include Canada, Australia, UK, Midwest USA, East Coast USA and West Coast USA. We will be working with many musicians so if you’d like to have your music featured within please contact us for paid work. We are hiring for ALL positions.

[ Ending Notes ]
There is no official name yet and early filming has only just commenced, which is what this footage is from. Getting used to the tech and cameras being around and making sure audio levels/video quality is where it needs to be.

7 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

Steam Big Picture

Steam Workshop

The ORION: Prelude Developer SDK Beta is launching in September 2014.

If you're a Mapper and would like to participate in private testing please go here:

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
Helpful customer reviews
418 of 499 people (84%) found this review helpful
5 people found this review funny
81.6 hrs on record
Posted: August 26, 2014

There simply aren't enough games with dinosaurs & even fewer of these that are actually worth playing! For me, Orion: Prelude (O:P) is that rare exception. Although not much in way of a story in the game (no single player after all), there is quite a tale on how Orion came to be the game it is today...

The short version is, that O:P is an evolution of previous Orion titles, Dino Horde & Dino Beatdown originally dating back to a successful 2011 Kickstarter campaign. Although recieving early criticism (that would normally kill a game ..dead.. disappearing into obscurity), the game continued to evolve with constant updates (big & small) over the years from the developers. Spiral stuck with it! This dedication & gradual refinement of the game has resulted in an excellent first-person co-op experience, with a well rounded collection of modes, weapons, enviromental effects, vehicles & more to enjoy.

PvP isn't forgotten; it's also selectable. PvP feels more alike to a retro deathmatches, than a modern PvP (in a good way!), but I mainly enjoy the co-op modes. In co-op, you essentially have to defend your power core against waves of bloodthursty dinosaurs. Dinosaur kills will reward you credits, which you can use to buy perks & weapon upgrades, in-turn helping you survive the later, harder waves. Some waves also have you securing objectives. Co-op doesn't feel ultra competitive, most of the time you don't watch your credits/kills, rather finding yourself just having fun surviving & helping your teammates! I've found the community to generally be helpful & friendly in-game too.

One of the real stand-out features in O:P has to be the enviromental effects randomly cycling on the alien world. From the day/night cycles to the extreme variety of climates & types of weather. Adds so much to the atmosphere. Couple this with excellent lighting effects through what seems to be a thicker atmosphere and the results can sometimes be spectacular! Even overwhelming! You definitely get that feeling when your final wave gets a night cycle with heavy rain .. you know you are gonna see an epic close quarter battle!

Along with the awesome effects, there are 3 distinct classes to mix-up the gameplay. Each has unique strengths & each you can progress/level-up in online play to unlock starting weapons, power-ups & perks. Initial learning curve isn't steep, so once you get the hang of the basic flow it becomes very easy to sink multiple hours killing dinos! O:P rarely feels like a grind; even at lower levels (without a lot of perks) you competently kill dinos & gain good XP. Plenty of dinos to go around too :)

If you can't find a friend to play with, there is also bot-support added in O:P to fill the ranks. This can be helpful to get playing quickly if server populations are low (which regrettably does happen).

The trilogy of classes are well balanced (no need for any other classes), as is the gameplay in general. Difficulty is super scalable. Weapons are mainly shared between classes so quickly become familiar, and vehicles are easy to use & offer a good range of practical & destructive uses. Repetitive? Sure, to a degree, it is the same thing over & over and despite there being a lot of 'accessories' to the spice up the character classes & tactics, modes etc, there are not a huge number of maps for each mode. I expect this will change soon with Steam Workshop support being added.

The A.I. generally employed by the dinosaurs is a fairly basic 'rush' tactic, which can feel pretty predictable (there are a few surprises though), but I find the larger dino numbers to counteract this limitation to a degree anyway. There are also the occasional technical glitches like querky physics (flying Stegosaurus anyone?) or clipping inside a dinosaur. Nothing game-breaking that I have experienced, but sure does make for some funny moments! Just like my many failed attempts at some of the more creative 'Ride a Dino for 10secs' & 'Slap T-Rex 100 times' achievements :)

O:P reminds me a bit of those classic, simple shooters like a Serious Sam or Left 4 Dead, but with a bit of high-tech sci-fi flavor. This future-tech feel across the game contradicts the jurassic era dinosaurs & remote wilderness landscapes nicely! O:P is not as complex mechanically or technically when compared to a top end AAA FPS, but its simplicity is also its underlying strength. It is great value ($1!), has strong replayability and the focused, balanced gameplay (some bonus ..ahem.. querks) offers a truely fun & intense, dino killin' co-operative survival experience!

Too much to read?

Yeah ok then (fair call lol)..

I'll let Dave Chappelle quickly summarise what O:P is really all about: (original artwork uploaded by Grayscars!)
Was this review helpful? Yes No Funny
357 of 427 people (84%) found this review helpful
27 people found this review funny
2.6 hrs on record
Posted: October 13, 2014
i mean... i dunno it's alright, it's kind of god awful in a hilarious broken buggy kind of way. But it's a dollar for a few hours of super cheap fun. You have to pay more for a can of coke than this game, and though coke is tasty and refreshing, this game costs less money and therefore is better than coke.
Was this review helpful? Yes No Funny
237 of 288 people (82%) found this review helpful
3 people found this review funny
9.2 hrs on record
Posted: October 26, 2014
This game started as disaster with a good idea. With the newest Update a lot has changed and it needs a review from all the bad voters.... it tooks a while but the devs made the effort to finish their product (not like many other bigger studios out there) Worth gaming. Worth buying.

Was this review helpful? Yes No Funny
351 of 443 people (79%) found this review helpful
34 people found this review funny
19.3 hrs on record
Posted: August 26, 2014
Perfectly Simulates Jurassic Park If It Was In Russia.
Was this review helpful? Yes No Funny
431 of 579 people (74%) found this review helpful
28 people found this review funny
8.2 hrs on record
Posted: September 30, 2014
Its like Cod Zombies without Zombies or Cod and theres Dinosaurs
Was this review helpful? Yes No Funny
62 of 72 people (86%) found this review helpful
7 people found this review funny
3.8 hrs on record
Posted: November 6, 2014
If this game was priced at $30+ I would say avoid it like the plague.

If this game was priced at $20 I would say don't bother waiting for a sale.

If this game was priced at $10 I would say just buy anything else.

If this game was priced at $5 I would say you could buy lunch instead.

If this game was priced at $1 I would say you have no reason not to own this.

So what I'm saying is you have no reason not to own this. If you even get one hour of entertainment out of it from soley looking at some nice graphics and laughing at some bugs and glitches that was a dollar well spent. It beats the hell out of paying $70 for a AAA-title for the same effect. The devs know this is not the greatest game ever made, but they have made leaps and bounds in progress from the days when this was considered "one of the worst games on Steam." And for precisely this reason they have dropped the price so much. They want to redeem themselves. They want people to play their game and give it a chance. What are you waiting for, you heartless ♥♥♥♥♥♥♥? It's only a dollar. Play their game.
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156 of 221 people (71%) found this review helpful
2 people found this review funny
5.0 hrs on record
Posted: November 5, 2014
Click for Gameplay Trailer - Review
Do you like first-person shooters? Do you like giant mecha? DO YOU LIKE DINOSAURS? Then Orion: Prelude may just be for you.
I’m in two minds about this multiplayer shooter from the ORION: Prelude team that somehow isn’t ORION: Prelude. Is ORION: Dino Beatdown a brilliant name for a game, or is it a horrible name for anything? One thing I do know, despite the laudable presence of dinosaurs and jetpacks, I’d be a lot happier if the dinosaurs were actually using the jetpacks :D

Everything in Orion is a little…bland. That isn’t to say that the game is rendered poorly, but it all just looks generic. Most of the dinosaurs and vehicles look good, for what they are worth, but some of the guns have not received as gracious a treatment. For example, the shotgun looks more like a rifle and has a really ugly ammo counter on it that just looks tacky.
The dinosaur models look just fine, but that isn’t the problem with them. They are often poorly animated. For velociraptors and “compies” the jump attack just looks silly and the bite animation is more a head twitch than a vicious attack.
The vehicles are frustrating to drive yet are grossly overpowered. Most dinosaurs, baring the large ones, you encounter can simply be killed by running them over. The rest will immediately destroy you vehicle for some unspecified reason.

The basic survival mode gets you through 15 waves of defending a generator and buying guns, but lacks any form of climax on the last wave. An evolution of this mode is Conquest , where you defend three bases consecutively and additionally, you can buy vehicles. It is basically three times Survival, but the game gets a lot more interesting with limited funds available – money sharing gets very important here.
The game feature actually 14 game modes.

Only in some modes you actually get to play as all the dinosaurs you normally fight. This part is actually pretty cool. You play as the dinosaurs in third person. Some of the gems in this mode are playing as a t-rex, raptor, and spinosaur. You can even be a deinosuchus (40ft long crocodile), which is pretty rad. But hey, how many games can you actually play as a dinosaur?

I am being pretty hard on this game, but despite all the flack I am giving it I still LIKE IT for some reason. It is just fun to play in its own quirky way. At the same time, I feel like the studio behind it might actually be able to polish it to a degree that it becomes a decent title. This is the 3 update now? Every update, the game is much better and the price drop down. 0,99$ is it today and at the halloween special the developers give the community 1000 FREE copies of the game. thats awesome :)
Overall, i almost feel like it is one of those games that is so bad it becomes good. 75% of the steam reviews are good, try it out and dont hear at the meta critics!

Sorry for my bad english. This is my review account, because the low playtime.
Thanks for reading! If you Like my Review, give me a Thumbs up in Steam.
Your help is greatly appreciated :)

My Curator Page:Sub
My Steam Group:GameTrailers and Reviews
My YouTube Channel:Steam Reviews
Was this review helpful? Yes No Funny
49 of 60 people (82%) found this review helpful
26 people found this review funny
3.5 hrs on record
Posted: December 23, 2014
360 noscoped a T-Rex for 0.49€
Was this review helpful? Yes No Funny
61 of 81 people (75%) found this review helpful
2 people found this review funny
7.0 hrs on record
Posted: August 30, 2014
• Cooperative Survival
• Excellent - UI
• Full Customization
• Full Optimization
• Avarage Gameplay

• Light Bugs/Glitches
• Slightly Repetitive

7.5/10 "Decent"
Was this review helpful? Yes No Funny
191 of 298 people (64%) found this review helpful
24 people found this review funny
2.5 hrs on record
Posted: October 23, 2014
Killed everyone with only a knife and 200 ping.
Was this review helpful? Yes No Funny
57 of 77 people (74%) found this review helpful
1 person found this review funny
376.3 hrs on record
Posted: November 17, 2014
Ah yes, Orion: Prelude, or as it will always be known to me, Orion: Dino Horde! This game has been quite criticized through the years (and in all honestly quite rightly so). they game if filled with bugs and lots of tedious grinding achievements. Still, despite all that I can't help but to love it. In fact it is the only game which I haven't uninstalled after reaching 100%.

So, there's no story to follow in this game and it's a pretty straightforward king of game. You're dropped as one of three classes (assault, recon and support) into a base where you're supposed to defend a generator against incoming waves of attacking dinos that don't enjoy your presence there. If all teammates dies or the generator is destroyed (a timer starts when it reaches 0% health and if it isn't repaired before time runs out it's destroyed) you all loose. If you survive all waves (10 for normal games and 30 for conquest games) then you win. Pretty simple. To your help you can buy a quite big assortment of weapons and perks and each class comes with a specific perk of their own (assault can jetpack, recon can cloak and support can heal).

This game has a lot of various pvps but there are only a couple which I really enjoy such as king of the hill and team elimination. The place where this game really shines is in regular Survival mode when you play together with a good, tight and cooperative team. This is where this game is at it's best! I don't think I've made as many friends in any game as I've made in this one.

So, in conclusion, if you want a good cooperative game and don't mind a few bugs here and there and can either ignore, or work through all the grinding achievements then yes, you will enjoy this game!
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68 of 97 people (70%) found this review helpful
2 people found this review funny
4.2 hrs on record
Posted: October 19, 2014
Over the years this game has been bashed as one of the worst games to be released on steam, however now I'd say get it.

For £0.79 game the graphics look like they are from a game costing £30, and the weather effects you get on your helmet is a nice addtion too, the main enemys in this game are dinosaurs and there are 7 of them and 2 flying reptiles and a giant Crocodile, all 10 of them feel unquie and fun to fight against.

You can get vechicles in this game, theres the average jeep with turret, a jet and a tank, but best of all theres a MECH! YES A MECH YOU CAN FIGHT A TREX WITH A MECH! All of the vechicles are great to drive and are really helpful overall.

Game breaking glitches like map glitches or crashes are very rare in this game, the only one I can think of is where you can leave a map by playing as a flying reptile or playing Assault with the jetpack and fly above the boundires, luckly this is only on one map and it's unplayed often.

However this game does have a few downsides....

1. A lot of weapon clipping, sound glitches and firing glitches, most noticeable with the default pistol, duo pistols and using reload speed upgrade.
2. Ragdolls are really glitchy at times, however more tame then any from the Source engine.
3. Playing as Dinosaurs is nearly impossible with the terrible camara angle and controls.
4. Soundtrack is really stock.
5. Small, but very friendly commuinty

Overall the game is much more better then it orignally was, a fun CO-OP horde game to play with your friends!
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38 of 52 people (73%) found this review helpful
2 people found this review funny
14.7 hrs on record
Posted: October 1, 2014
Yes, buy this game. Its Killing floor + Halo + Turok.
It has its flaws, but the devs seem devoted and are present on the steam forums. If you played this game in beta and not again(like me) give it another shot, it is now playable(LoL) and quite awesome. The difference is uncanny. I reinstalled it yesterday and I'm already level 11. It never felt like grinding.
Buy a four pack, get some friends who will play installed and have a blast together.

For me the biggest con is the limited players. That easy to solve though, buy and play this WAY under priced game.
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24 of 29 people (83%) found this review helpful
2 people found this review funny
42.0 hrs on record
Posted: October 11, 2014
I enjoyed it since the dino horde update. It's like a mixture of killing floor, halo and dinosaurs, sounds silly but it's a really fun game to play with your friends. Good graphics, no story mode(single player), 5 different difficulties, pvp and co-op mods, three classes and many equipments to choose from, vehicles, simple serverlists, simple level system that rewards you boosts, ''starting weapons'' and more. This game is worth more than the price says, grab it and share with your friends! :)
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234 of 397 people (59%) found this review helpful
15 people found this review funny
0.4 hrs on record
Posted: October 12, 2014
"Open the door, get on the floor"
"Everybody walk the dinosaur. "

-11/10 would walk the dinosaur
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27 of 35 people (77%) found this review helpful
11 people found this review funny
10.6 hrs on record
Posted: December 30, 2014
if(price < 1.00 && fun==true && online==true && payToWin==false){
return null;
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37 of 54 people (69%) found this review helpful
1 person found this review funny
5.5 hrs on record
Posted: October 15, 2014
My friends call this game "The good game because it's so bad".
A bare mininum shooter game with surprisingly good varity of weaponry.
Expect glitches and bugs because it's not a triple A game.
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17 of 19 people (89%) found this review helpful
5 people found this review funny
43.2 hrs on record
Posted: September 6, 2014
Broken in all the right ways
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38 of 57 people (67%) found this review helpful
1 person found this review funny
2.3 hrs on record
Posted: October 25, 2014
This game? This game is awesome. It costs only 0.79$. Thats pretty cheap for a game like that.
Lots of features, funny gameplays, multiplayer matchmaking super fast and lots more.
Verry nice co-op with friends. Totally worth the money. But it!
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84 of 144 people (58%) found this review helpful
1 person found this review funny
124.8 hrs on record
Posted: October 11, 2014
When this was Orion: Dino Horde, I would have recommended this game.

Most of my time spent playing this game was when it was under the previous title, and I throughly enjoyed my time with the game during that time. I randomly decided to try it once more, after its update to the new title to see if it was still okay.

The menu UI for the game, with the transition, feels like it under went a 15+ year regression compared to what it was previously. They had a fairly sleek UI previously, that overall looked decent for a modern age game, and it functioned well enough, and now the new UI looks like something that might have been taken straight out of the late 90s, maybe early 2000s.

Aside from that, the views while in the game, at least to me, went from feeling like a decent first/third shooter to feeling just cramped. I could be wrong on what I recall on this point, but I remember having a wider field of vision for both first and third person views, and even as a spectator floating around, I recall a wider view than what is shown.

On the positive side, it is still a good game for the price.. it just feels more deserving of that price now, instead of feeling like an amazing game for the price. If you need something to entertain you for a couple of hours, this will certainly do it, especially for the price on it.
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