They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
Recent Reviews:
Mostly Positive (248) - 78% of the 248 user reviews in the last 30 days are positive.
All Reviews:
Very Positive (9,435) - 85% of the 9,435 user reviews for this game are positive.
Release Date:
Dec 12, 2017

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Early Access Game

Get instant access and start playing; get involved with this game as it develops.

Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more

What the developers have to say:

Why Early Access?

“This game has two game modes: Survival and Campaign. As the Survival mode is already fully playable, we think it is a great idea to let the players play it and take their feedback to improve the game while we work in the Campaign mode. All the feedback and improvements will be applied to the Campaign too.”

Approximately how long will this game be in Early Access?

“As this game can be expanded in a lot of ways, we will keep it as Early Access as long as needed. With that said, we expect to finish the Campaign mode in Winter of 2018.”

How is the full version planned to differ from the Early Access version?

“The Early Access game will start by including the Survival Mode. In several months, we will include the Campaign mode, the story mode, with hand-crafted levels, crazy NPCs, and lots of other fun features! The final release will include both the Survival and Campaign mode.”

What is the current state of the Early Access version?

“The Early Access game now contains the Survival Mode. In this mode, a random world is generated and the player must create a colony that can survive in an apocalyptic world for a set period of time.”

Will the game be priced differently during and after Early Access?

“Early Access will be cheaper than the final release. However, we have not finalized the price for the final release.”

How are you planning on involving the Community in your development process?

“We plan to be extremely involved with the community. We love community feedback! We already did this with our last game Lords of Xulima.”
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Recent updates View all (19)

August 6

Something Giant is coming!


While we are working hard developing the Campaign of They Are Billions we would like to add some more spice to the current Survival Mode:

The Infected Giant

The Infected Giant is a very special enemy with some specific features. The Giant is a mutated infected that has grown without limit for years and years. It is so huge that the earth trembles under its passage.

When does the beast appear in the game?

From the beginning... They start roaming the outer border of the map, nevertheless, the Giants are so huge that you will always know where they are as their position will be marked on the minimap with a small icon. This is a great clue so you know where you shouldn’t expand your colony or move your units, at least not until you have a very powerful army to fight them.

The Giant(s) appear on the maps with the Infected Population set at “Challenging” difficulty or above. So, new players don't worry, you won't need to face this beast during your first playthroughs.

The Tiny Brain of the Giant

Giants are huge and powerful but with a tiny brain. They cannot hear so they are not attracted by nearby activity. Also, they are almost blind, they react slowly to your actions, but be careful, once it detects a target it will chase it with terrifying speed and there are no walls in the world that can stop them!

Their Deadly Attack

The Giant has the most powerful attack in They Are Billions. They have a very long reach and they hit everything in a 120º arc. Nothing can escape their attack, even other infected can be destroyed if they are within the Giants attack range.

I'm scared... What can I do?

Nothing. We recommend you avoid the Giants and don’t annoy them under any circumstance. But you can’t avoid them all game, you should kill them before the final horde comes for your colony, because they will join them as any other infected on the map. Believe us, last thing you want is to fight the final swarm and the Giants at the same time...

Version 0.9: More Features

New Difficulty Mode: Nightmare!

Are you one of the pro-players that think TAB is a piece of cake? Congratulations and welcome to your worst nightmare!

This is a new value for the Infected Population, which increases the huge population of Brutal mode by 30%!!! And it also includes a gift of three Giants on the same map. We think it is almost impossible to beat the game on this mode but it will be great fun to try. If you can beat it in the desert, you will get a score factor of 800%!! Good luck!

Some technical info about this mode: We have optimized TAB even more in the 0.9 version, allowing the engine to move more and more units. That being said, this mode requires a good computer with many cores and a high speed. Using a lower spec computer can cause the game to suffer, dropping frames and running slowly when the big swarm heads towards the colony. However, the game will continue to be playable.

Armor System Refactored

In previous versions of TAB, the Armor value of the units are subtracted from the damage, for example, an attack of 8 against an armor of 3, deals 5 life points of damage.

Now the Armor decreases the damage as a percentage instead of an absolute value. For example, an attack of 8 against a 25% armor deals 6 life points of damage. This means that now, small damage attacks like the weak infected are not as reduced by the armor as before, but the deadlier attacks (Harpies, Chubies, Giants....) are much more reduced. Also, with the new armour values, Soldiers and Titans are much more resistant to damage than the Rangers and Snipers, which is more realistic.

  • Ranger and Sniper: 5%
  • Soldier and Titan: 40%
  • Lucifer and Thanatos: 25%

New Map Features

You can find on the maps new elements to loot, food crates that add food to the Command Center and old batteries that provide extra energy to the colony. Also, we have added some more decorative elements.

Some more Balancing
  • Traps life increased.
  • Soldier and Titan damage increased.
  • Veteran Soldier and Veteran Ranger attack range increased.

New Achievements
Four new achievements:
  • Giant Slayer Level 1: When you kill your first Giant.
  • Giant Slayer Level 2: When you kill your two Giants on the same map.
  • Giant Slayer Level 3: When you kill your three Giants on the same map.
  • The Most Wonderful Colony: When you build all the Six Wonders in your colony.

And that's all for the moment, we hope you to enjoy this new update. In the next one we will talk and show more screenshots from the Campaign.

See you soon!
139 comments Read more

June 7

Development Update v.0.8.2


Just a quick update on the game development.

Campaign Development

We are working now in two fronts, the Old Fortresses, where the tactic missions will be played, and the Trains system. In the next update we’ll talk more about them and we’ll publish new screenshots with new content.

Trains on Survival Mode?

As we said before we want to keep on trying to enrich the content of the Survival mode with elements from the campaign. Therefore we are also considering including the Trains in the Survival mode, but just as new environmental element. There will be a railway line that will cross the map and, periodically, there will be trains passing through the map. It will not only be a nice touch for the maps, but also an important strategic element. Obviously you won’t be able build over the railways so you’ll have to defend that parts in a different way (without walls). On the other hand the trains will destroy all those unlucky infected who happen to be on its way. That’ll certainly be something worth watching!

New Version 0.8.2

These are the new features of the 0.8.2 version, which is available now:

New Army Buttons

Many times in the game, you want to select all the units of the same type, for example, "Select all snipers to defend the North wall....". There is a new button on the right part of the screen for every type of unit you have (Ranger, Sniper...) that also shows the total amount of each of them. Click them and all the units of that type will be selected.

You can combine the mouse clicks with the Shift key to add the units to the current selection.

Press F2 to select all the Army

You can use the shortcut F2 to select all units available in your army.

Power Plant Changes

Now the Power Plant uses 10 wood units instead 5 wood and 5 stone. Before, building sawmills in the late stages of the game was something superfluous and by contrast, if you built several power plants you could easily run out of stone which is so necessary as the game progresses. We think that works much better now, as it improves the resources balancing especially in the second half of the game.

Stakes and Blades Traps

Judging by the screenshots and gameplay videos from players, it seems that the traps are underused. We think they are currently very useful, as they not only harm the infected but also slow them down. Another advantage is that they can be placed on the floor without restrictions and don't block the movement of your army (as the walls do).

Also they would make more sense in real life, where a fortress would have one or two rows of walls with a gate protected by a series of traps. Building lots of walls randomly just to block the infected looks quite weird :)

So for all these reasons we have improved the traps:

- Stakes Trap: +20% Life. + 25% damage.
- Blades Trap: +30% Life. + 25% damage.

Pathfinding for Swarms: Improved Performance

There is a good reason why They Are Billions is clearly one of the games that manages more units in real time, units that are truly independent, every unit has their own AI and behaves always on their own. That's the reason why the infected swarms in They Are Billions looks so natural and organic.

The game engine is ultra optimized in every aspect, especially the path finding, which is one of the most costly operations.

In many other games with big armies, the paths are computed for a full group of units and generally those paths don't change with time as the environment is static and fixed. By contrast, on TAB every unit computes its own paths to reach its targets. This path is recomputed every few seconds to react to the changes of the environment (walls destroyed, structures built...). Thanks to that, the swarms can split in several paths or single units can leave the swarm if they have seen or heard something, as it would happen in real life.

Although the game system is already quite optimized, we have gone further. Previously, all paths were recomputed if anything on the map changed, which could lead to some frame drops when there are big swarms running to the colony. Now, only if something that can affect the current paths is changed the path is recomputed. For example, the infected don't care about walls; they ignore them unless they are blocking their movement in which case they will try to destroy them. So now, if a wall in their path is destroyed or built the path won't be recomputed.

What all of this stuff means to the player? We expect the game to run smoother, specially when big swarms are approaching the colony.

Survival Challenge: Score Factor fixed
It was an issue when computing the final score of the Survival Challenge. The Score Factor relative to the map type was not incorporated to the equation, so all score factors of the Survival Mode were 100% regardless the map type. Now that bug is fixed so your score will reflect better the real difficulty of the map.

And that's all for now. Thanks for your support and see you soon!
177 comments Read more
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About This Game

They Are Billions is a strategy game in a distant future about building and managing human colonies after a zombie apocalypse destroyed almost all of human kind. Now there are only a few thousand humans left alive that must struggle to survive under the threat of the infection. Billions of infected roam around the world in massive swarms seeking the last living human colonies.

Survival Mode - Available Now!

In this mode, a random world is generated with its own events, weather, geography, and infected population. You must build a successful colony that must survive for a specific period of time against the swarms of infected. It is a fast and ultra addictive game mode. We plan to release a challenge of the week where all players must play the same random map. The best scores will be published in a leaderboard.

Real Time with Pause

This is a real-time strategy game, but don’t get too nervous. You can pause the action to take the best strategic and tactical decisions.
In Pause Mode, you can place structures to build, give orders to your army, or consult all of the game’s information.
This game is all about strategy, not player performance or the player’s skill to memorize and quickly execute dozens of key commands. Pause the game and take all the time you need!

Build your Colony

Build dwellings and acquire food for the colonists. They will come to live and work for the colony.
Collect resources from the environment using various building structures. Upgrade buildings to make them more efficient.
Expand the energy distribution of the colony by placing Tesla Towers and build mills and power plants to feed the energy to your buildings.
Build walls, gates, towers, and structures to watch the surroundings. Don’t let the infected take over the colony!

Build an Army

What kind of people would want to combat the infected?
Only the maddest ones. Train and contract mercenaries to protect the colony. They demand their money and food, and you will have to listen to their awful comments, but these tormented heroes will be your best weapon to destroy the infected.
Every unit is unique and has their own skills and personality – discover them!

Thousands of Units on Screen

Yes! They are billions! The world is full of infected creatures… they roam, smell, and listen. Every one of them has their own AI. Make noise and they will come – kill some of them to access an oil deposit and hundred of them will come to investigate.
We have created our custom engine to handle hordes of thousands of the infected, up to 20,000 units in real time.
Do you think your colony is safe? Wait for the swarms of thousands of infected that are roaming the world. Sometimes your colony is in their path!

Prevent the Infection

If just one of the infected breaks into a building, all the colonies and workers inside will become infected. The infected workers will then run rabid to infect more buildings. Infections must be eradicated from the beginning, otherwise, it will grow exponentially becoming impossible to contain.

Beautiful 4K Graphics!

Prepare to enjoy these ultra high definition graphics. Our artists have created tons of art pieces: Beautiful buildings with their own animations, thousands of frames of animation to get the smoothest movements and everything with a crazy Steampunk and Victorian style!

Future Game Mode - Campaign

In the campaign mode, you have to help the surviving humans to reconquer their country. There are dozens of missions with different goals: building colonies, tactical missions, rescue missions... You can decide the path of progress and mission - research new technologies, advances and upgrades to improve your colonies and army. We are working right now on the campaign and we expect it will be available for Winter 2018. The campaign will be included for free to all the buyers of the Steam Early Access version.

System Requirements

    • OS: Windows 7, 8, 10 (32 and 64 bits)
    • Processor: INTEL, AMD 2 cores CPU at 2Ghz
    • Memory: 4 GB RAM
    • Graphics: Intel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram.
    • DirectX: Version 9.0c
    • Storage: 4 GB available space
    • Additional Notes: Minimum resolution: 1360x768, recomended FULL HD 1920x1080.
    • OS: Windows 7, 8, 10 (64 bits)
    • Processor: INTEL. AMD 4 cores CPU at 3Ghz
    • Memory: 8 GB RAM
    • Graphics: Radeon 7950 or above, Nvidia GTX 670 or above. 4GB video ram.
    • DirectX: Version 9.0c
    • Storage: 4 GB available space
    • Additional Notes: 4K Monitor (3840x2160)

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