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.

Game Modes


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.

Survival Mode

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 100 days 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!

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We would like to announce that the Early Access launch is coming soon. But first, let’s talk about the beta program and the supporting campaign.

The Beta Program Exploded! What happened?

For those that have not followed the game updates, here is a small summary.
We first announced the game in July 2017. Since then, we published updates periodically revealing more info about the game. Over time, interest and popularity grew for They Are Billions. Initially, we announced Early Access would be released in Fall 2017 with only the Survival mode. Then in Spring 2018, we’d release the campaign. But after we thought about it for awhile, we thought perhaps that the Survival mode would not be enough content to justify the Early Access launch. Therefore, we decided to delay the launch and only release it when both modes were ready in 2018.


Over time, the hype grew and we received a lot of emails from people that wanted to pre-order to back the game because they loved the art, gameplay, theme… So we thought it would be a nice idea to launch a crowdfunding campaign as we did with Lords of Xulima, which worked very well.

In Update #5, we asked the players for feedback on what we should do because we weren’t sure if we should run a Kickstarter campaign or just create a place to support us directly from our website at Numantian Games. We all agreed that the second option was the best, so we worked on setting up a page for players to back us directly. Additionally, we thought that it would be a great idea to let the backers play the Survival mode as beta testers to give us feedback to improve and polish the game. This is exactly what we did for Lords of Xulima. Everything sounded perfect 🙂

So we did it all on Halloween. We asked for a pack of beta keys from Steam and launched the supporting web. In the beginning, we temporarily restricted the Ranger Edition to avoid having too many players for the very first version of the game because of all the possible bugs. However, many fans voiced their opinion that they felt betrayed for having the Ranger edition locked. It was then that we enabled the Ranger Edition.

This is when everything really began to snowball. People started to play it, upload videos on Youtube, and spread the word. Some big Youtubers even joined the party, building even more hype and expectations for They Are Billions. In less than two weeks, the Ranger keys sold out. A few days later…the Soldier Edition, two days after that…the Sniper Edition… What?????

Check out one of the most viewed YouTube Videos of They Are Billions by Splattercat Gaming:

And during all this debacle, we, the developers were working day and night fixing all the problems and solving lots of issues with hardware compatibility. As we created a custom engine for They Are Billions, it had only been tested on a few dozen different PCs. Now we suddenly had 10K players testing it at the same time! And during the development, we also had to attend to thousands of forum posts with bugs, feedback, and thousands of emails with crash reports that the game sends automatically. We also received hundreds of emails every day of people complaining because they wanted to play the game but didn’t receive a key, or that they did not know that it was a pre-order, or that we were the most greedy company in the world for selling a game for $250 (the Lucifer Edition)… !!!

We would have loved to have the ability to save the game before the launch of the pre-order web so we could return to that point and do things differently, but the real life, as in They Are Billions, works in Ironman mode.

TheyAreBillions Art1

The Good News

First, a big thank you for all that have backed They Are Billions. We are very, very happy and appreciative. That extra income will be so helpful for creating a great campaign that They Are Billions and its players deserve. THANK YOU!!

Second, the game reception has been extremely positive from the beta players, Youtubers, and all the non-buyers that write to us just to say that they love the game and want to play it now. And this is just the Survival Mode! Wait until you see the campaign, which is the main mode that conceived They Are Billions!

Third, during these last three weeks, we have been able to polish a lot the game, solving many issues, bugs, and exploits. We now feel that it is in very good shape. But of course, we will continue the process of fixing and polishing. So, in order to allow everybody to play the game, especially the ones that have pre-ordered it, we will try to release the game on Steam Early Access as soon as possible. We expect to release it in a few weeks. We will add some additional features to the Survival Mode (as you can see in the What’s Next post on the forum). Also, we will add Achievements and Steam cards. A basic tutorial for new players will also be implemented.

Initially, the game will have only the Survival Mode during the Early Access phase. We will continue to expand and improve this mode while we work on the campaign. We expect the campaign to be ready Spring 2018.

What do you think? Let us know your thoughts!

See you soon!

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Visit our Steam Store page of They Are Billions and add it to your wishlist!

They Are Billions Update: Survival Mode Beta Available for Pre-Order

They Are Billions Update: Survival Mode Beta Available for Pre-Order


The survival mode for real-time strategy title They Are Billions is now available for pre-order. We have different tiers to purchase the game such as...

They Are Billions Update: Ready for the Survival?

They Are Billions Update: Ready for the Survival?


Upcoming zombie RTS game They Are Billions will have two main modes: Campaign and Survival Mode. Our latest update discusses development schedule, survival...

They Are Billions Update: Build Your Colony

They Are Billions Update: Build Your Colony

News 1 comment

Today we are going to talk about building and managing the colony. Managing the colony is one of the most important aspects of They Are Billions. What...

They Are Billions Update: Defend your colony!

They Are Billions Update: Defend your colony!

News 2 comments

Today, we will talk about one of the most important parts of the game which is defending your colony from the infection. We are sure every player will...


awesome! :DDDDD, wil be free2play?

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I'm still enjoying Lords of Xulima. This looks amazing! Can't wait...

(Buena suerte gente, que no es facil desarrollar juegos en la tierra de Cervantes :p)

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When I get muns I'm probably gonna snag the best edition. This game looks great!

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Looks cool, take our money and give us early access now!;-)

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Definitely excited about this one

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A zombie rts game, cant wait! I like that they are billions and there are far far far far less humans AND it looks steampunky to boot! Oh and did i mention ITS A ZOMBIE RTS GAME

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Oh very interesting! Any idea on a price range?

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NumantianGames Creator

Thanks for the comment! We're not sure on a price as of yet.

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They Are Billions
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RT @theyarebillions: They Are Billions Early Access Coming Soon!! Details here: #gamedev #videogames #zombies

Nov 22 2017

If you missed out on the limited beta, we aim to release "They Are Billions" in the next few weeks to Steam Early A…

Nov 20 2017

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An awesome playlist of gameplay videos by @HudBudd_Gaming of "They Are Billions!"

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Great beta gameplay video of "They Are Billions" by Jordan Choklad. #gamedev #indiedev #zombies

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