They Are Billions

Steam Reviews

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• Recommended Posted January 23, 2026 on Steam They Are Billions is not a strategy game. It is a stress test for your soul. On the surface, it looks like a steampunk RTS about building a colony and holding off zombie hordes. That is a lie. What it actually is: a slow, methodical exercise in dread where perfection is the minimum requirement for survival. You do not lose this game in heroic last stands. You lose it because you missed a single tile. One gap in a wall. One ranger distracted. One infected slipping through the fog. That tiny mistake does not stay tiny. It turns into a full on in-♥♥♥♥♥♥♥-fection in seconds. A house goes down. That spawns four more infected. They sprint. They snowball. They scream. Suddenly your economy collapses, your defenses fold inward, and your entire colony becomes an accelerating meat grinder. The game does not pause. It does not warn you. It lets you watch. The sound design deserves its own mention because it is pure psychological warfare. That first infection noise cuts straight through your spine. If you have played this game, you know the exact sound. Your brain recognizes it before your eyes do. By the time you react, it is already spreading. Expansion is not exciting. It is terrifying. Every inch of fog of war is a potential death sentence. Clearing land feels like defusing bombs while blindfolded. The zombies are fast, relentless, and unforgiving, and the game demands obsessive attention to choke points, patrol routes, and redundancy. One line of defense is failure waiting to happen. Two lines means you are learning. Three lines means you might survive. The brutality is not random. That is what makes it hurt. Every collapse is your fault. You knew better. You told yourself it would be fine. The game remembered. When things go well, They Are Billions feels incredible. You are a paranoid god, tightening the screws, building a machine that holds back extinction by inches. When things go wrong, it is absolute annihilation. No recovery. No mercy. Only the realization that you have to start over and do it cleaner this time. This game does not care about your time. It cares about discipline. If you want a forgiving RTS, walk away. If you want a game where a single lapse turns into total systemic collapse, where tension never lets go, and where victory feels earned through fear and precision, They Are Billions delivers brutality at a surgical level. You were warned.
• Recommended Posted December 12, 2025 on Steam Love it. Shame the devs decided they were "done" almost immediately after they dropped the campaign because I would have liked a couple more maps/challenges. The campaign is kind of weak and I definitely had more fun just trying to learn/beat all the different maps on higher difficulties (during early access) and doing the weekly/daily challenges. The achievements are also pretty badly balanced. Some are hyper easy and some are never going to happen. I have over 500 hours played with just over 2m zombie kills and you need 100m for the achievement... yeah nah
• Recommended Posted October 20, 2025 on Steam Is this game good? Yes Is this game made for masochists who dont know what the word "fun" means? Yes --- They are Billions is when you take the idea of tower defense, flip it on its head, add colony management to it and then throw a horde mechanic towards the player and yell "Have fun with that one, A**hole!". You min max or you die. You kite or you die. You build the RIGHT colony or you die. You build efficient or you die. You skill proper or you die. I think the one thing the game really has going for it that if you end up failing it doesnt spell disaster. Your save file doesnt get erased. You dont lose any progress other than on the level you played on. You can even reset the entire research tree at no cost whatsoever so you can experiment with what you may be wrong about. That is until you won a game with it. Then you can get screwed on that lol Now would I say that the game is worth 30 bucks? Well it is 6 years old. And the gameplay isnt the most entertaining. Its more a case of "Lock in and enjoy". So if you are that kinda person? Yea it is. If not, wait for a sale.
• Not recommended Posted July 2, 2025 on Steam I like the game but ♥♥♥♥♥♥♥♥ it needs a way to speed of time, some of these campaign missions are painfully long and have a ton of just sitting around waiting for the timer to tick down.
• Not recommended Posted December 11, 2025 on Steam This game has had basically no support since it released, so many problems with the campaign making it a massive waste of time with pointless hero missions which become point and click, pointless swarm missions where you just spam pure soldiers, poor difficulty curve with most of the community agreeing the hardest mission comes up ~1/3 into the campaign. All this and if you mess up the tech tree you might make your campaign unbeatable and need to restart it all. TL;DR: if you want to just play surival mode for a few hours it a bit of fun but dont bother playing campaign
• Recommended Posted January 24, 2026 on Steam 1542 Hours of gameplay. Still playing everyday. Enough said. Would love a follow up game one day.