Eden Engine database · mobile base
A compact database of the Eden Engine's published systems: heat, fuel, power, carriages, storage, crafting, upgrades and defense.
Updated September 1, 2026 · Pre-release records can change
The Eden Engine is Frostrail's moving base, heat source, production hub and route north. The crew operates it between frozen levels, carries recovered supplies aboard, and expands it into a stronger moving fortress.
This page organizes the systems the developers have described without inventing fuel efficiency, module slots, upgrade costs or failure timers.
The train is the crew's dependable refuge from the cold. Expedition range is constrained by the ability to return to warmth.
Players fuel the Eden Engine, manage power and operate the train to move farther through the wasteland.
New carriages expand the mobile base and create room for storage, production and stronger defenses.
Recovered materials return to onboard storage and stations for refining, assembly, repair and upgrades.
Official store material says the crew can reinforce the train's walls and improve its ability to survive the journey.
The May update says train-defense encounters were integrated into obstacle-clearing gameplay, bringing combat directly to the base.
Every expedition changes what the crew can bring back to the Eden Engine, and every train upgrade changes the next expedition's range or resilience.
Fuel burn, power draw, module capacity and upgrade costs need current build evidence before they belong in a numeric calculator.
Official material establishes game facts. Community threads are labeled because a player report is evidence of a question or workaround, not a developer guarantee.
Learn Frostrail's current core loop: operate the Eden Engine, prepare an expedition, manage the cold, recover supplies and move north.
Open page →Understand Frostrail's train-based crafting loop, modular weapons, refining chains and dedicated repair workstations without guessed recipes.
Open page →Current Frostrail item records for ammunition, tools, repair inputs and Relics, with screenshot context and missing values left out.
Open page →