
Fossilfuel, is a horror action shooter, where the player must fight their way through Jurassic monsters and Super Soldiers, in this multi-ending, adrenaline-fueled cyberpunk experience!
Modeled estimate, not a reported figure. How we estimate →
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 0/day in the week to Aug 3 → 0.14/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 26 chart moves that followed a price cut of more than 20% went a median of 7 places towards #1, and the 2,400 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
CAUTION: THIS GAME IS HARD AND FULL OF JUMP SCARES!
OPERATION FOSSILFUEL
Deep under the Great Sitkin Island in Alaska, you find yourself in the heart of one of the greatest scientific research facilities on Earth! Genetic researchers have bred mutant dinosaurs! But things go bad when the base is invaded by shadowy special forces, looking to steal the dino DNA. You grab your guns and your ammo and prepare for a fight...
At its core, Fossilfuel is a survival horror game. The player is trapped in a massive underground facility, Sierra, located in a remote location in Alaska. The player must use their head to find clues and solve puzzles to escape the facility.
The game features several massive maps that the player can play in any way they want. Their decisions will decide the ending of the game. Once the player escapes the depths of Sierra, they are faced with the sprawling landscape that is, the Great Sitkin Island. The main story campaign will be a solid length of around 6 to 10 hours of gameplay depending on your skill level.
Experience a massive arsenal of weapons as you plow through a huge library of enemies. The game features a wide range of weapons that are not just traditional firearms, your standard FPS arsenal of Shotguns and rifles, but also weapons of science fiction! Weapons that can warp physics and crush your enemies' bones in seconds! The game runs on the power of the Unreal Engine, enabling crazy particle effects and physics as well as difficult enemy squad AI that tries to flank the player and calls for reinforcements as the situation dynamically calls for it. Enemy dinosaurs will use all their sense to track the player as well. A Velociraptor on the other side of the base is there...hunting you...always coming.
The game enemies also span into our Homosapien brothers. The enemy soldiers will call for reinforcements, radio ahead to comrades on the other side of the map to prep for the player, talk to each other, provide covering fire, flank manoeuvers, can spot dead comrades, watch and listen for the player to make sounds, and even spot the player clicking on their flashlight. These guys are tough but the player can cut them down with fun weapons like the black hole gun!
The Dinosaur AI is likewise very aggressive. Velociraptors have incredible eyesight and can hear every move you make. They tend to travel in pairs and love to perform flanking maneuvers as well. Raptors, however, are not the only baddies you will encounter. But you will have to play to find out!
Players are encouraged to record, make twitch, or youtube videos about Fossilfuel. Make sure you link to the game if you do so.
A FREE Demo featuring the terrifying introduction level is also on the Steam store.
Fossilfuel features a wide range of achievements. Time and experience are tracked while playing and players will get a rank at the end of the game. High rankings are tied to achievements as well.
Fossilfuel
Rank S - Finish under 1 hour, with XP over 500
Rank A - Finish under 2 hours
Rank B - Finish under 3 hours
Rank C - Finish under 4 hours
Rank D - Finish over 4 hours
Fossilfuel Demo
Rank S - Finish under 15 minutes, with XP over 75
Rank A - Finish under 20 min
Rank B - Finish under 30 min
Rank C - Finish under 60 min
Rank D - Finish over 60 min
(Note the Demo does not have achievements)
Engagement
Reviews
Themes across 44 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Чёрт, мои глаза. Почему во всех плохих играх так всё пересвечено? 20 минут и я пошёл глаза мыть средством от коньюктивита. Кривой шутер, как писюн после 20000 дрочек. Очень плохо.
I wish i could recommend this game but i can't. The start of it seemed so promising and the areas were interesting to start but it all just falls apart very early on. It stops using the Dinos and switches to soldiers, and loses the tight dark lad/office corridors to go to open areas and large open factories where you can just alert one solider and due to their bad design and programming will just charge you in an easy to shoot single file line. The second half of the game feels like a watered down F.E.A.R without the enemy intelligence or the bullet time. I am truly heartbroken by this game as i saw the vision in the early parts of it, it had so much potential but it just ditched what it was trying to do to be unique. It also is just poorly optimized and i had to switch to low graphics to stop it from lagging and breaking. I had hope for this but after playing and beating it i cant even look to its sequel because this has just left me wanting.
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Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English**languages with full audio support
Hours played at review time, across 44 reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Ich hatte auf ein Dino-Horrorspiel gehofft und bekam ein schlechtes Ghost Recon. Was zur Hölle sollte diese Panzerfahrt? Auch die Schalldämpfer hatten keinerlei Wirkung. Die Gegner haben einen so oder so entdeckt. Am Ende war es nur noch Geballer. Aber Props an den WIllheim-Schrei. Trotz allem waren gegen Ende einfach gar keine Dinos mehr da. Außer ein T-Rex mit Hüftschaden. Ähnlich wie alle anderen "Bosse". Weiß ich nicht. PS: Die Erfolge sind verbuggt.
por favor corrija o problema com as conquistas!!! gosto muito do seu jogo e gostaria de fazer 100% das CONQUISTAS STEAM!!
6-13-26 Game is really good. Fossilfuel 3 demo came out and I had no idea this dev was so good. I found Fossilfuel 1 on my computer and quickly had to find 2, and other games by this dev. Top quality and good controls and gameplay is inspiring. Game is well done.
Joguei 20min, em 20min achei uns 9 tipos de bug diferente kkkkkkkk dinossauro travando em buracos, teleportando, te atacando sem te ver. O segundo jogo é mt melhor
start with a axe on my first day place blows up get eaten by dinosaur... start again pants soiled perfectly placed jumpscare. 6hrs later in hospital had several heartattacks and dehydrated 9/10 cant wait to play the next installment.
This is such a fun game. Are there some issues? Yes. It's not a perfect game. But I don't think the dev pretends it is. If you're like me finding yourself getting more and more fed up and tired of AAA gaming and gravitating towards indie experiences this is for you. There's so much passion here. Give it a shot you won't be disappointed.
nice game
Grafikleri ve sistemi güzel düşünülmüş, fakat oynanış ve hareket kabiliyeti gibi sistemini çok başarılı bulmadığım bir yapımdır kendileri. Umarım 2. oyunu da bu konuda vasat kalmaz. Bana 90'lar ve 2000'lerdeki oyunların sistematiğini hatırlatmadı değil yani.. Bir an oyunu eski ve remake yapılmış bir yapım zannettim.
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Players by region
Where this game's players are, estimated from review languages.
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