Technology Tree
The technology tree is one of the main mechanics of Frostpunk, after building a Workshop and employing engineers there, the Technology Tree will be unlocked, which will allow you to create and develop ideas on new buildings and improvements for your city. It could be considered the most important mechanic of the game for sustaining your city, since you need to research in order to unlock buildings that produce resources infinitly. There are three main tabs in the technology tree that are shared between scenarios: Heating, Resources and Food, Health & Shelter. Most scenarios also have the Exploration and Industry tab, but The Last Autumn instead has the Generator Construction tab
The tree is organized into tiers, which require to be researched in order to unlock their technologies going from tier 0, which is always available, to tier 5. You also need the previous technology for the ones that are part of a "branch". Technology and tiers require materials to be researched. Some scenarios have different technologies that are exclusive to them or are unlocked after a specific event, as specified in their description. The technologies in the list below are split into the ones from The Last Autumn and the ones from the rest of scenarios (Endless scenarios use the same tech tree as A New Home, except for the Stereoscopic Lenses and Outpost Depot, which are not available on Endless mode)
List of technologies[edit | edit source]
Heating[edit | edit source]
Seam Hub[edit | edit source]
No previous requirements.
Allows you to build Steam Hubs, which create heat zones around them that have the same heat level as the Generator's one.
Steam Hub Range Upgrade[edit | edit source]
Requires Steam Hub. Tier 2
Unlocks the option to individually expand the range of Steam Hubs up to 50% more than the original one, while consuming twice as much coal.
Steam Hub Efficiency Upgrade[edit | edit source]
Requires Steam Hub Range Upgrade. Tier 4
Reduces the amount of coal consumed by Steam Hubs by a 33%
Generator Power Upgrade[edit | edit source]
No previous requirements. Tier 1
Allows to increase the temperature in heat zones by 1 while increasing the coal consumption by 6 (to a total of 12/hour)
Generator Power Upgrade II[edit | edit source]
Requires Generator Power Upgrade. Tier 3
Allows to increase the temperature in heat zones by 1 while increasing the coal consumption by 6 (to a total of 18/hour)
Generator Power Upgrade III[edit | edit source]
Requires Generator Power Upgrade II. Tier 5
Allows to increase the temperature in heat zones by 1 while increasing the coal consumption by 6 (to a total of 24/hour)
Generator Efficiency Upgrade[edit | edit source]
Requires Generator Power Upgrade. Tier 2
Reduces the coal consumption of the Generator by 10%
Generator Efficiency Upgrade II[edit | edit source]
Requires Generator Efficiency Upgrade. Tier 4
Reduces the coal consumption by 10%, to a total of 20% with its previous technology
Overdrive Couplings[edit | edit source]
Requires Generator Power Upgrade. Tier 2
Allows to increase the temperature level in all heat zones by 2 instead of 1 when using the Generator's overdrive mode
Generator Safety Bypass[edit | edit source]
Requires Overdrive Couplings. Tier 5
The stress produced in the Generator when using the overdrive mode will increase 25% slower and fall 25% faster
Generator Range Upgrade[edit | edit source]
No previous requirements. Tier 1
Increases the range of the Generator by 3 tiles (enough to fit a housing unit) while consuming twice as much coal as the base level
Generator Range Upgrade II[edit | edit source]
Requires Generator Upgrade . Tier 3
Increases the range of the Generator by 3 tiles (enough to fit a housing unit) while consuming three times as much coal as the base level
Generator Range Upgrade III[edit | edit source]
Requires Generator Upgrade. Tier 5
Increases the range of the Generator by 3 tiles (enough to fit a housing unit) while consuming four times as much coal as the base level
Heaters[edit | edit source]
No previous requirements
Improved Heaters[edit | edit source]
Requires Heaters. Tier 2
Heater Efficiency Upgrade[edit | edit source]
Requires Improved Heaters. Tier 3
Advanced Heaters[edit | edit source]
Requires Improved Heaters. Tier 4
Braziers (On The Edge exclusive)[edit | edit source]
No previous requirements. Tier 2
Radiator Extensions[edit | edit source]
Requires Braziers. Tier 4
Improved Blowers[edit | edit source]
Requires Braziers. Tier 4
Efficient Burners[edit | edit source]
Requires Braziers. Tier 3
Avanced Burners[edit | edit source]
Requires Efficient Burners. Tier 5
Repair Station[edit | edit source]
No previous requirements. (The Fall of Winterhome exclusive)
Repair Station Efficiency[edit | edit source]
Requires Repair Station. Tier 2
Optimised Shifts[edit | edit source]
Requires Repair Station Efficiency. Tier 4
Repair Station Effciency II[edit | edit source]
Requires Repair Station Efficiency. Tier 4
Repair Station Efficiency III[edit | edit source]
Requires Repair Station Efficiency II. Tier 5
Emergency Repair[edit | edit source]
Requires Repair Station. Tier 2
Emergency Repair II[edit | edit source]
Requires Emergency Repair. Tier 5
Resources[edit | edit source]
Faster Gathering[edit | edit source]
No previous requirements
Resource Depot Upgrade[edit | edit source]
Requires Faster Gathering. Tier 1
Large Resource Depot[edit | edit source]
Requires Resource Depot Upgrade. Tier 2
Gathering Post Insulation[edit | edit source]
Requires Fasther Gathering. Tier 2
Gathering Post Insulation II[edit | edit source]
Requires Gathering Post Insulation. Tier 4
Efficient Gathering[edit | edit source]
Requires Gathering Post Insulation. Tier 3
Coal Thumper[edit | edit source]
No previous requirements.
Steam Coal Thumper[edit | edit source]
Requires Coal Thumper. Tier 2
Coal Thumper Injectors[edit | edit source]
Requires Steam Coal Thumper. Tier 5
Coal Mining[edit | edit source]
No previous requirements. Tier 1
Coal Mining Optimisation[edit | edit source]
Requires Coal Mining. Tier 2
Coal Mining Rationalisation[edit | edit source]
Requires Coal Mining Optimisation. Tier 4
Steam Coal Mine[edit | edit source]
Requires Coal Mining. Tier 3
Advanced Coal Mine[edit | edit source]
Requires Steam Coal Mine. Tier 5
Charcoal Kiln[edit | edit source]
No previous requirements. Tier 1
Charcoal Kiln Thermostat[edit | edit source]
Requires Charcoal Kiln. Tier 2
Charcoal Kiln Bellows[edit | edit source]
Requires Charcoal Kiln Thermostat. Tier 3
Sawmill[edit | edit source]
No previous requirements
Steam Sawmill[edit | edit source]
Requires Sawmill. Tier 2
Sawmill Upgrade[edit | edit source]
Requires Sawmill. Tier 1
Sawmill Range Extension[edit | edit source]
Requires Sawmill Upgrade. Tier 4
Wall Drill[edit | edit source]
No previous requirements. Tier 1
Steam Wall Drill[edit | edit source]
Requires Wall Drill. Tier 3
Advanced Wall Drill[edit | edit source]
Requires Steam Wall Drill. Tier 5
Steelworks[edit | edit source]
No previous requirements
Steam Steelworks[edit | edit source]
Requires Steelworks. Tier 2
Advanced Steelworks[edit | edit source]
Requires Steam Steelworks. Tier 4
Food, Health & Shelter[edit | edit source]
Hothouse[edit | edit source]
No previous requirements. Tier 1 (A New Home, The Refugees, The Arks and The Fall of Winterhome excluive)
Hothouse insulation[edit | edit source]
Requires Hothouse. Tier 2
Hothouse Insulation II[edit | edit source]
Requires Hothouse Insulation. Tier 4
Industrial Hothouse[edit | edit source]
Requires Hothouse. Tier 3
Hothouse Selection[edit | edit source]
Requires Industrial Hothouse. Tier 5
Hunters' Gear[edit | edit source]
No previous requirements (A New Home, The Refugees and The Fall of Winterhome exclusive)
Hunting Tactics[edit | edit source]
Requires Hunters' Gear. Tier 2
Flying Hunters[edit | edit source]
Requires Hunters' Gear. Tier 2
Flying Hunters' Gear[edit | edit source]
Requires Flying Hunters. Tier 4
Medical Post Upgrade[edit | edit source]
No previous requirements. Tier 1
Healthcare Insulation[edit | edit source]
Requires Medical Post Upgrade. Tier 2
Healthcare Insulation II[edit | edit source]
Requires Healthcare Insulation. Tier 5
Infirmary[edit | edit source]
Requires Medical Post Upgrade. Tier 2
Infirmay Mechanisation[edit | edit source]
Requires Infirmary. Tier 3
Infirmary Chechlists[edit | edit source]
Requires Infirmary. Tier 4
Bunkhouse[edit | edit source]
No previous requirements. Tier 1
Cookhouse Insulation[edit | edit source]
Requires Bunkhouse. Tier 2
House[edit | edit source]
Requires Bunkhouse. Tier 3
House Redesign[edit | edit source]
Requires House. Tier 4
House Insulation[edit | edit source]
Requires House. Tier 5
Exploration and Technology[edit | edit source]
Beacon[edit | edit source]
No previous requirements
Automaton Scouts[edit | edit source]
Requires Beacon. Tier 1 (The Arks exclusive)
More Scouts[edit | edit source]
Requires Beacon. Tier 1
Additional Scouts[edit | edit source]
Requires More Scouts. Tier 4
Lighter Scout Sleds[edit | edit source]
Requires More Scouts. Tier 2
Boosted Scout Sleds[edit | edit source]
Requires Lighter Scout Sleds. Tier 5
Outpost Depot[edit | edit source]
Requires Beacon. Tier 2 (A New Home, The Refugees and The Fall of Winterhome exclusive)
Faster Outpost Teams[edit | edit source]
Requires Outpost Depot. Tier 4
Factory[edit | edit source]
No previous requirements. Tier 2
Streamlined Prostheses[edit | edit source]
Requires Factory. Tier 3
Optimised Prostheses[edit | edit source]
Requires Streamlined Prostheses. Tier 4
Streamlined Automatons[edit | edit source]
Requires Factory. Tier 3 (A New Home, The Arks, The Fall of Winterhome and The Refugees exclusive)
Automaton Redesign[edit | edit source]
Requires Streamlined Automatons. Tier 5
Automaton Integration[edit | edit source]
Requires Factory. Tier 3 (A New Home, The Arks, The Fall of Winterhome and The Refugees exclusive)
Automaton Integration II[edit | edit source]
Requires Automaton Integration. Tier 4
Automaton Integration III[edit | edit source]
Requires Automaton Integration II. Tier 5
Medical Automatons[edit | edit source]
Requries Automaton Integration. Tier 4
Medical Automatons Integration[edit | edit source]
Requires Medical Automatons. Tier 5
Engineer Automatons[edit | edit source]
Requires Automaton Integration. Tier 4
Beacon: Stereoscopic Lenses[edit | edit source]
No previous requirements (A New Home exclusive)
Resources (The Last Autumn)[edit | edit source]
Docks[edit | edit source]
No previous requirements.
Faster Reloading[edit | edit source]
Requires Docks. Tier 1
Upgraded Docks[edit | edit source]
Requires Docks. Tier 2
Advanced Docks[edit | edit source]
Requires Upgraded Docks. Tier 4
Reloading Station[edit | edit source]
Requires Docks. Tier 1
Steam Reloading Station[edit | edit source]
Requires Reloading Station. Tier 3
Gathering optimisation[edit | edit source]
Requires Steam Reloading Sation. Tier 4
Advanced Reloading Station[edit | edit source]
Requires Steam Reloading Station. Tier 5
Faster Gathering[edit | edit source]
No previous requirements
Efficient Gathering[edit | edit source]
Requires Faster Gathering. Tier 2
Resource Depot Upgrade[edit | edit source]
Requires Faster Gathering. Tier 1
Larger Resource Depot[edit | edit source]
Requires Resource Depot Upgrade. Tier 2
Sawmill[edit | edit source]
No previous requirements.
Sawmill Upgrade[edit | edit source]
Requires Sawmill. Tier 1
Sawmill Range Extension[edit | edit source]
Requires Sawmill Upgrade. Tier 3
Steam Sawmill[edit | edit source]
Requires Sawmill. Tier 2
Charcoal Kiln[edit | edit source]
No previous requirements. Tier 2
Charcoal Kiln Thermostat[edit | edit source]
Requires Charcoal Kiln. Tier 3
Charcoal Kiln Bellows[edit | edit source]
Requires Charcoal Kiln Thermostat. Tier 4
Heat (The Last Autumn)[edit | edit source]
Braziers[edit | edit source]
No previous requirements. Tier 2
Radiator Extensions[edit | edit source]
Requires Braziers. Tier 4
Improved Blowers[edit | edit source]
Requires Braziers. Tier 4
Efficient Burners[edit | edit source]
Requires Braziers. Tier 3
Avanced Burners[edit | edit source]
Requires Efficient Burners. Tier 5
Heaters[edit | edit source]
No previous requirements. Tier 2
Improved Heaters[edit | edit source]
Requires Heaters. Tier 4
Advanced Heaters[edit | edit source]
Requires Improved Heaters. Tier 5
Healthcare Insulation[edit | edit source]
No previous requirements. Tier 2
Healthcare Insulation II[edit | edit source]
Requires Healthcare Insulation. Tier 4
Generator Construction (The Last Autumn)[edit | edit source]
Profiles Manufacture[edit | edit source]
No previous requirements
Optimised Materials[edit | edit source]
Requires Profiles Manufacture. Tier 2
Safety improvements[edit | edit source]
Requires Optimised Materials. Tier 3
Protective Structures[edit | edit source]
Requires Profiles Manufacture. Tier 1
Optimized Protection[edit | edit source]
Requires Protective Structures. Tier 3
Foundry[edit | edit source]
No previous requirements. Tier 2
Safety Improvements[edit | edit source]
Requires Foundry. Tier 4
Innovative Process[edit | edit source]
Requires Foundry. Tier 3
Machine Shop[edit | edit source]
No previous requirements. Tier 1
Safety Improvements[edit | edit source]
Requires Machine Shop. Tier 3
Redesigned Templates[edit | edit source]
Requires Safety Improvements. Tier 4
Supercharge[edit | edit source]
Requires Machine Shop. Tier 2
Advanced Supercharge[edit | edit source]
Requires Supercharge. Tier 4
Ventilation Plant[edit | edit source]
No previous requirements. Tier 1
Ventilation Plant Coupling[edit | edit source]
Requires Ventilation Plant. Tier 3
Ventilation Plant Integration[edit | edit source]
Requires Ventilation Plant Coupling. Tier 5
Efficient Fans[edit | edit source]
Requires Ventilation Plant. Tier 3
High Flow Filters[edit | edit source]
Requries Efficient Fans. Tier 5
Food and Health (The Last Autumn)[edit | edit source]
Foragers Quarters[edit | edit source]
No previous requirements
More Foragers[edit | edit source]
Requires Forager Quarters. Tier 1
Aditional Foragers[edit | edit source]
Requires More Foragers. Tier 3
Forager Carts[edit | edit source]
Requires Foragers Quarters. Tier 1
Boosted Forager Carts[edit | edit source]
Requires Forager Carts. Tier 3
Fishing Harbour[edit | edit source]
No previous requirements. Tier 1
Finer Mesh[edit | edit source]
Requires Fishing Harbour. Tier 2
Advanced Fishing Harbour[edit | edit source]
Requires Fishing Harbour. Tier 4
Medical Post Upgrade[edit | edit source]
No previous requirements. Tier 1
Infirmary[edit | edit source]
Requires Medical Post Upgrade. Tier 3
Infirmary Checklists[edit | edit source]
Requires Infirmary. Tier 4
Medical Mechanisation[edit | edit source]
Requires Infirmary. Tier 5