Fossilfuel

First-person survival horror with mutant dinosaurs and invading soldiers

DangerousBob Studio LLC · Released Aug 20, 2021

As of Oct 28, 2026: -70% right now, $4.49

Reviews: Mostly Positive; 70% of 166
Recent reviews: Not enough recent
Players: 0; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 3 years ago; Oct 26, 2023
Minimum PC: 470 GTX; 4 GB RAM · 15 GB disk; Full requirements

What is Fossilfuel?

Fossilfuel is a single-player, first-person survival horror shooter set beneath Alaska's Great Sitkin Island, where special forces invade a research facility to steal mutant dinosaur DNA. You explore large maps, search for clues, solve puzzles, and fight dinosaurs and soldiers using firearms and science-fiction weapons. Your decisions determine which ending you reach.

For you if...

+you like survival horror puzzles and inventory management

Not for you if...

−you prefer forgiving combat without jump scares

What players say

70% of 166 reviews are positive

Players praise the dinosaur encounters and horror moments. Common complaints include bugs, awkward controls, sudden deaths, and the campaign's later emphasis on soldiers rather than dinosaurs.

Screenshots and trailer

Fossilfuel system requirements

Minimum: 470 GTX, 4 GB RAM, 15 GB of disk space.

As published by the developer.

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Minimum

OS: Windows 7 64-bit or later
Processor: Quad-core Intel or AMD 2.5 GHz or faster
Graphics: NVIDIA GeForce 470 GTX or AMD Radeon 6870 or better
Memory: 4 GB RAM
Storage: 15 GB available space
DirectX: Version 12

Does Fossilfuel have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Fossilfuel run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some in-game text is small and may be hard to read
Default configuration is not performant
All functionality is accessible with the default controller configuration
External controllers are not supported for the primary player

PC version details

DRM: None declared on Steam
Controller: Full controller support
Platforms: Windows
Achievements: 28
Steam features: Family Sharing
Languages: Full audio: English.

Does Fossilfuel use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam