
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
ジャンルはホラーシューティングもの クリア時間は2時間程度 ・良い点 音楽がかっこよい ジャンプスケアが少なめ ・悪い点 後半から恐竜消えて人と戦い始める、なんで 難易度Easyでも恐竜の火力が高すぎて3発で死ぬ もはやCODだろこれ
bello ma non troppo si smerda nel finale, gli ac sono buggati e l'ia è carentissima
I recommend this game for anyone who likes a horror dino FPS shooter. However, It would be nice if there would be subtitle options.
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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
뇌빼고 신나게 공룡 쏴죽이고 싶으면 개추
zerado bom
i really enjoyed this game, the horror of dinosaur especially raptor really give me jumpscare good work for dev
Sorry low attention span and raptor bugs through walls when im hiding and istant dies guns do nothing
I played this back in early access in 2021. I just now came back to play the final product. What the hell happened guys. After the soldiers are introduced this game falls off like crazy. Barely any dinosaurs like whatttt?? Silly ass game still recommend cus its so goofy. Yeaaa
This game is fun for what it is. Its not a Jurassic Park AAA title but its a great scary game featuring Dino's!
I can't believe how many positive reviews this game got. Do not let the trailer fool you. This game is an absolute soulless cash grab that is barely functioning. There is no polish on this game at all. Even the achievements are glitched. DO NOT BUY.
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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