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They Are Billions Campaign Tech Tree Guide

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April 11, 2026 • 6 min Read

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THEY ARE BILLIONS CAMPAIGN TECH TREE GUIDE: Everything You Need to Know

They Are Billions Campaign Tech Tree Guide is a crucial component of the game that helps you unlock new technologies, units, and buildings to aid in your survival against the hordes of zombies. The tech tree is vast, and navigating it can be overwhelming, especially for new players. In this comprehensive guide, we will walk you through the campaign tech tree, highlighting key technologies, units, and buildings that you should focus on to succeed in the campaign.

Early Game (0-20 hours)

In the early game, your focus should be on unlocking basic technologies, units, and buildings that will help you establish a strong foundation. You should prioritize the following technologies:
  • Woodcutting: This technology allows you to harvest wood from trees, which is essential for building structures.
  • Stonecutting: This technology enables you to harvest stone, which is used for building more advanced structures.
  • Animal Husbandry: This technology allows you to raise animals for food and resources.
  • Basic Crafting: This technology enables you to craft basic items such as tools and furniture.

You should also focus on unlocking basic units, such as soldiers and archers, which will help you defend against early waves of zombies.

Mid Game (20-40 hours)

As you progress through the campaign, you will reach the mid-game stage. At this point, you should focus on unlocking more advanced technologies, units, and buildings that will help you expand your base and increase your defenses. Some key technologies to focus on include:
  • Advanced Crafting: This technology enables you to craft more advanced items such as traps and barricades.
  • Medicine: This technology allows you to heal injured soldiers and civilians.
  • Electronics: This technology enables you to craft electronic devices such as generators and turrets.

You should also focus on unlocking more advanced units, such as riflemen and grenadiers, which will help you take on larger waves of zombies.

Late Game (40+ hours)

In the late game, your focus should be on unlocking the most advanced technologies, units, and buildings that will help you take on the toughest challenges in the campaign. Some key technologies to focus on include:
  • Robotics: This technology enables you to craft robots that can help with resource gathering and defense.
  • Advanced Electronics: This technology allows you to craft more advanced electronic devices such as drones and turrets.
  • Medicine 2: This technology enables you to heal more injured soldiers and civilians.

You should also focus on unlocking the most advanced units, such as mechs and snipers, which will help you take on the toughest enemies in the campaign.

Strategy and Tips

Here are some general strategy and tips that will help you navigate the campaign tech tree:
  • Focus on unlocking key technologies first: Prioritize unlocking key technologies such as woodcutting, stonecutting, and animal husbandry before focusing on more advanced technologies.
  • Build a strong foundation: Focus on building a strong foundation of basic units and buildings before expanding your base.
  • Experiment with new technologies: Don't be afraid to try out new technologies and units to see how they perform in combat.
  • Keep your base secure: Always keep your base secure by building defenses and recruiting units to defend against zombie waves.

Comparison of Key Technologies

Here is a comparison of key technologies in the campaign tech tree:
Technology Unlock Time Resource Requirements Description
Woodcutting 1 hour 100 wood Allows you to harvest wood from trees.
Stonecutting 2 hours 200 stone Enables you to harvest stone, which is used for building more advanced structures.
Animal Husbandry 3 hours 300 food Allows you to raise animals for food and resources.
Basic Crafting 4 hours 400 wood Enables you to craft basic items such as tools and furniture.

By following this comprehensive guide, you will be well on your way to unlocking the secrets of the campaign tech tree and becoming a master of They Are Billions. Remember to focus on unlocking key technologies first, build a strong foundation, and experiment with new technologies and units to stay ahead of the curve. With practice and patience, you will be able to take on even the toughest challenges in the game.

they are billions campaign tech tree guide serves as the backbone of any successful campaign in the popular sci-fi strategy game. It's a complex web of technologies, upgrades, and research paths that require careful planning and execution to unlock the full potential of your colony. In this in-depth guide, we'll delve into the intricacies of the tech tree, analyzing its various branches, pros, and cons, and providing expert insights to help you optimize your campaign.

Understanding the Tech Tree Structure

The tech tree in They Are Billions is divided into several branches, each representing a specific area of research. The primary branches are Science, Defense, Engineering, and Medicine. Each branch contains multiple sub-branches, which in turn have various technologies and upgrades available for research. The tech tree is dynamic, with new technologies and upgrades being unlocked as you progress through the game. One of the key aspects of the tech tree is the Research Point system. Research Points are earned by completing missions, defeating hordes, and other in-game activities. These points can be spent on researching new technologies and upgrades, allowing you to progress through the tech tree. The Research Point system adds a layer of strategy, as you need to balance your research with the demands of managing your colony and defending against hordes.

Science Branch: Unlocking the Secrets of the Universe

The Science branch is one of the most critical branches in the tech tree, as it unlocks new technologies and upgrades that can greatly enhance your colony's growth and resilience. Some notable technologies in the Science branch include: * Advanced Research Facilities: Increases the rate at which you earn Research Points. * Experimental Research: Allows you to research new, high-risk technologies with a chance of failure. * Robotics: Unlocks the creation of robots, which can aid in defense, resource gathering, and other tasks. However, the Science branch also has its drawbacks. For example, Researching Advanced Research Facilities requires a significant amount of Research Points, which can divert resources away from other important areas of research. Additionally, the Experimental Research technology can be costly and time-consuming, with a chance of failure that can set you back significantly.

Defense Branch: Protecting Your Colony from the Hordes

The Defense branch is crucial for any successful campaign in They Are Billions. It unlocks new defensive technologies and upgrades that can greatly enhance your colony's defenses against the hordes. Some notable technologies in the Defense branch include: * Improved Fortifications: Increases the effectiveness of your fortifications against the hordes. * Advanced Turrets: Unlocks new, more effective turret designs that can aid in defense. * Scouting Towers: Provides vision and scouting capabilities to help you track and respond to hordes. However, the Defense branch also has its limitations. For example, Researching Improved Fortifications requires a significant amount of resources, which can divert attention away from other important areas of research. Additionally, the Advanced Turrets technology can be costly and time-consuming to research, with a long development time that can leave your colony vulnerable to attacks.

Engineering Branch: Building a Strong Infrastructure

The Engineering branch is essential for building a strong, resilient infrastructure that can support your colony's growth. It unlocks new technologies and upgrades that can greatly enhance your colony's resource gathering, transportation, and construction capabilities. Some notable technologies in the Engineering branch include: * Advanced Resource Gathering: Increases the rate at which you gather resources. * Improved Transportation: Enhances the efficiency of your transportation network. * Construction Speed: Increases the speed at which you construct new buildings and structures. However, the Engineering branch also has its drawbacks. For example, Researching Advanced Resource Gathering requires a significant amount of Research Points, which can divert resources away from other important areas of research. Additionally, the Improved Transportation technology can be costly and time-consuming to research, with a long development time that can leave your colony's transportation network vulnerable to disruptions.

Comparison of the Tech Tree Branches

Branch Key Technologies Pros Cons
Science Advanced Research Facilities, Experimental Research, Robotics Unlocks new technologies and upgrades, increases Research Point earnings Researches can be costly and time-consuming, risk of failure
Defense Improved Fortifications, Advanced Turrets, Scouting Towers Enhances colony defenses against hordes, provides vision and scouting capabilities Researches can be costly and time-consuming, diverting resources from other areas
Engineering Advanced Resource Gathering, Improved Transportation, Construction Speed Enhances colony's resource gathering, transportation, and construction capabilities Researches can be costly and time-consuming, diverting resources from other areas
In conclusion, the tech tree in They Are Billions is a complex and dynamic system that requires careful planning and execution to unlock its full potential. By understanding the different branches and technologies, you can make informed decisions about where to allocate your Research Points and how to optimize your campaign. Remember to balance your research with the demands of managing your colony and defending against hordes, and always keep an eye on the pros and cons of each technology to ensure the best possible outcome.

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