
Command swarms of warriors at an unprecedented scale of warfare in this blend of RTS and base-building. Lead ant colonies against the many fearsome threats of the insect world, while building intricate nests, developing pheromone-based tactics, and evolving to meet growing dangers.
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
Discounts
Every price cut of more than 20% we have observed, in each market that quoted one, with this game's chart position on either side of it. These are episodes, not a model: a sale is one event, and one event cannot tell you what the next one will do.
Reviews, worldwide (the counter carries no country): 7.71/day in the week to Aug 22 → 10.57/day in the week after.
For scale, across Steam · Top Sellers · Brazil over the last 30 days: the 23 chart moves that followed a price cut of more than 20% went a median of 14 places towards #1, and the 2,515 moves with no price cut behind them went 2 away. One store, one chart, one country — it is the only place we have enough observations to say even that.
Prices outside the United States have been collected since 6 August 2026 and chart positions since 19 July 2026, so a cut older than that has no market to compare and a market that joined later has no history yet. Nothing here is converted between currencies.
About
Forge your empire in the world of ants, building extensive nests and managing an intricate hierarchy in a way that puts the real-time strategy genre under the microscope. Control a variety of warrior ant species in intense battles, command your workers to build and supply an ever-expanding base, and protect your queen at all costs while navigating the unique threats and opportunities of the insect world.

Hundreds of warriors clash in a melee of gnashing mandibles as formic acid artillery fires overhead. Nightfall has come and the last of the workers are rushing back underground, dodging beetles to deliver food to the nest. The stockpile is empty, and without more, reinforcements will not hatch for the ongoing war between the duelling Empires of the Undergrowth.
Starting from a central room hosting your queen, order your workers to develop and optimise your nest – a vast network of store rooms, nurseries, and hallways. Dig through a hex-based maze of soil and bedrock, seeking food and fending off other underground dwellers.
Push beyond the confines of your nest to see what the world above has to offer – with seeds, nectar, fungus, other insects, and even amphibians on the menu, there's plenty to choose from, but each food source comes with its own strategic tradeoffs and challenges. Will you venture forth and fight off the ladybugs that eat and deplete your source of renewable honeydew drops, or do the surrounding nocturnal creatures present too much of a risk for your fledgling colony? Each decision you make has a ripple effect that can doom your colony if you aren’t quick to react to evolving circumstances.
Manage a multitude of species with different attack patterns, natural weapons, and evolutionary paths to tackle the particular dangers of your current biome. Nighttime sorties are at times essential as you look to secure food supplies, though unsuspecting ants might fall prey to the dangers that lurk after sundown. Come morning, you’ll find yourself competing with other ant colonies instead, entering enemy nests to attack their queens while defending your own. Prepare to operate and coordinate simultaneous war efforts across multiple underground and overground maps as your threats and opportunities change with each passing moment – there’s no single path to domination.

Workers scurry in from the surface. Few have returned, but they carry valuable sources of food that will help reinforce the front as a new wave of warriors pour forth from the nurseries, eagerly following the scent of pheromones that tell them where to go and what to do en route. They are the last bastion of the colony, born with a singular purpose – hold the line!
Design and organise multiple nurseries and assign them individual pheromone groups, with each pheromone group taking orders through the placement of pheromone markers, adjustable rules of engagement, and context. Learning to navigate the behaviours of your ants, as well as each species’ strengths and weaknesses, is integral to securing success.
Each pheromone group can be specialised on the fly, told to exclusively collect food, partake in combat, or do both – the right decision can turn the tide of battle. In desperate times, when the colony is starving and new eggs have stopped hatching as a result, will your warrior caste focus on gathering food at the risk of being picked off by aggressive enemies en route? Or will the soldiers divide into escort groups for your remaining workers, ensuring survivability at the cost of overall efficiency elsewhere? Don’t forget to keep at least some workers at the nest to dig, build, and maintain the placement of eggs, to ensure the survival of your ant economy.
Each species of ant presents its own set of strengths and weaknesses on the battlefield. In special game modes where multiple species can be raised in the same colony, your decision to raise and upgrade one or the other will completely change the way you do battle. Trap-jaw ants fight in melee, occasionally leaping back to replenish lost hitpoints. Leafcutter majors fulfil their natural role as protectors by drawing enemy aggression onto themselves to give allied ants an opportunity to flank, regroup, or escape. Wood ants can evolve to fire formic acid as long range artillery or in a more rapid, straight line. Find synergies between the multitude of natural strengths and weaknesses of each species, and prepare to defend against them when warring with rival colonies.
Your enemies are equally varied – apart from other ant colonies, you’ll engage in combat against arachnids, amphibians, crustaceans, and a wide variety of insect species. These powerful and often (comparatively) gigantic creatures present a unique threat to an unprepared colony, and only superior tactics can overcome them. An envelopment manoeuvre can circumvent the adult devil’s coach horse beetle's stunning spray, while tactically isolating and overwhelming hermit crabs one by one will bring their demise faster than they can hunker down to heal.

Victory is certain! Reinforcing troops arrive in the nick of time, fearless in the face of the horrifying abomination before them. Today the sadistic scientist has blended hermit crabs with scorpions into a terrifying new threat, but the colony has evolved wisely after experiencing such unnatural foes before. After a protracted battle the fearsome chimaera teeters on the brink of collapse, but a new foe arrives on the battlefield – piercing through the skies above, the hand of some strange being comes down to crush half the reinforcing troops, and from the great beyond the scientist lets forth an evil cackle. The tide has turned once more…
Apart from the classic RTS skirmishes against the AI and unique seasonal challenges, Empires of the Undergrowth also features a narrative-driven campaign mode. Follow the simultaneous progress of a lab experiment centred around the mysterious Formica ereptor gene-thief ants alongside a documentary series that explores the various species of ants in their natural biomes. Earn resources through successful documentary missions to upgrade your persistent lab colony and evolve according to your preferred playstyle as you put your ants through a multitude of brutal tests conducted in the name of ‘science’ – but not all is as it first seems…
Add-ons
Each DLC is estimated with the same model as a game, then summed — a modeled figure, not reported DLC sales.
Sums Steam only; Epic publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $29.99 | 17.5Kreviews | 94% | — | $18.8M |
| $29.99 | — | 95% | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Updates
Build ids and update times come straight from Steam's PICS — the same source SteamDB reads. Patch history grows as we record new builds.
Engagement
Reviews
Themes across 1113 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
.
This game is surprisingly satisfying. I really enjoy the "base building" of this game to make a strong colony of ants.
剧情模式有意思,边讲故事边战斗,可惜流程有点短
Media

Related
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Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $18.8M | 55.3K | 87% | $12.49 | |
| $18.8M | 23.5K | 90% | $29.99 | |
| $18.9M | 35.2K | 97% | $13.99 | |
| $18.9M | 58.4K | 93% | $14.99 | |
| $18.8M | 19.4K | 78% | $39.89 | |
| $18.7M | 61K | 97% | $14.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $34.3M | 27.4K | 91% | $39.99 | |
| $2.5M | 2.1K | 92% | $29.99 | |
| — | 0 | — | — | |
| $5.7M | 3.5K | 86% | $29.99 | |
| $3.6M | 3.7K | 92% | $29.99 | |
| $2.5M | 2.3K | 94% | $29.99 |
Genres
Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, German, Simplified Chinese, Spanish - Spain, Russian, French, Czech, Dutch, Japanese, Korean, Polish, Italian +5 more
Hours played at review time, across 1.1K reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
傻逼游戏
classic
cool ant game 5 stars
As a bug nerd and a lover of RTS macro, this game hits the mark. It's not a perfect game. Some of the missions are better than others, and there are some win conditions that feel tedious. Overall, though, it's a clever game with a lot to like. The soundtrack is wonderful as well.
this game provides different unique challenges that keep it from being repetitive and the only thing that I could ask for is multiplayer. over all its definately worth buying. especialy on a discount.also the game would probably run on most computers smoothly.
我支持出地下蚁国2可以联机并且更新故事模式。剧情就是科学家变异后一直在扩大蚁圈实力军队消杀无法斩草除根,每次都能利用蚂蚁的体型和科学家的智慧逃脱,对生态环境造成了巨大伤害。科学家1很自责没有看好科学家2,一直在研究方法消灭窃贼林蚁。直到她发现了只要窃贼林蚁蚁后接触到了另一个窃贼林蚁蚁后的气味无论她们相距多远,用什么方法干扰都能知道互相的位置并且会互相厮杀。她想到了以暴制暴以蚁制蚁,她利用实验给第2个窃贼林蚁莫氏大头蚁,小黑家蚁,臭猛蚁,布氏游蚁,黑色行军蚁,血红林蚁(奴隶制造者),大齿猛蚁以及最强大的子弹近猛蚁的基因。并且全程监督亲自操控实验。 科学家3:姐,我们是不是就差一步了? 科学家1:没错,就差一步了。那个畜生肯定剩下了些东西找找看吧。 科学家3:姐,快过来!这些是残留的蚁皇浆! 科学家1:太好了,等她熟悉了这个气味就开始最终的“实验”吧! 科学家3:那这个蚁后怎么办? 科学家1:别担心,我在她的身体里装了微型炸弹,不会再重蹈覆辙了。 科学家3:好,姐。我们开始准备吧。 最终实验之前。?:微型炸弹?呵呵。你可真会想。我看了他的实验记录和猜想,按照他的反应来看。基本都是正确的,唯有一点,也是最重要的一点。我一定会成功的!
Amazing game, trying to 100% the achievements. Would love some more levels though
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Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
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