What is the cheapest place to buy They Are Billions?

Steam at $29.99 — an official store, and the lowest of the 7 stores we compare for your region. Prices update through the day, so check the table above before buying.

Is They Are Billions free?

No — They Are Billions is a paid game. The cheapest we can find it is $29.99.

Has They Are Billions ever been cheaper?

Yes — the lowest we have tracked is $18.74. It is $29.99 today.

Is They Are Billions Steam Deck compatible?

Mostly. Valve rates They Are Billions Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.

Can I play They Are Billions on Mac?

Not natively — Steam lists no macOS version of They Are Billions. Mac players would need a cloud gaming service or a Windows compatibility layer.

Is They Are Billions multiplayer?

No — Steam lists They Are Billions as single-player only.

Is They Are Billions on PC Game Pass?

No — They Are Billions is not on PC Game Pass right now. The best price to buy it right now is $29.99.

They Are Billions

Name: They Are Billions
Brand: Numantian Games
Availability: InStock

Numantian Games · June 18, 2019 · Base Building, Colony Sim, Strategy, Zombies, Survival

Buy They Are Billions from Steam at $29.99 — the cheapest of 7 stores we compare. The cheapest They Are Billions key from a keyshop is $30.13 at CJS CD Keys.

Strategy deals Survival deals Zombies deals

Very Positive85% · 51,49677Metacritic2,418playing now

Best price

$29.99

lowest tracked $18.74

Buy at Steam

Prices last checked 13 Nov 2026, 03:58 UTC

More Steam deals →

Where to buy They Are Billions — official stores

Steam

Standard Edition · Steam

$29.99

Buy

Humble Store

Standard Edition · Steam

$29.99

Buy

GOG

Standard Edition · DRM-Free

$29.99

Buy

Cheapest They Are Billions keys — keyshops

Keyshops are third-party marketplaces — keys are resold and can be region-locked or a different edition. Check the listing's region & edition before buying.

CJS CD Keys

Standard Edition · Steam

$30.13

Buy

Kinguin

Standard Edition · Steam

$43.37

Buy

GAMIVO

Standard Edition · Steam

$59.06

Buy

Driffle INC

Standard Edition · Steam

$75.68

Buy

Some store links are affiliate links — playze may earn a commission at no extra cost to you. It never changes the price you pay, and the cheapest confirmed price is always shown in the Best price box above.

They Are Billions price by region

They Are Billions costs $14.49 in Georgia (USD), £22.81 in the United Kingdom, $29.99 in the United States, €29.99 in Europe (EUR), CA$33.99 in Canada, NZ$36.99 in New Zealand, A$41.95 in Australia, R$58.99 in Brazil and zł107.99 in Poland right now.

Cheapest They Are Billions offer in each region, in local currency
Region	Best price	Official store	Key shop	Stores
Georgia (USD)	$14.49	$14.49	$30.13	6
United Kingdom	£22.81 −9%	£24.99	£22.81	5
United Statesyour region	$29.99	$29.99	$30.13	7
Europe (EUR)	€29.99	€29.99	€51.83	5
Canada	CA$33.99	CA$33.99	—	3
New Zealand	NZ$36.99	NZ$36.99	—	3
Australia	A$41.95	A$41.95	—	3
Brazil	R$58.99	R$58.99	—	3
Poland	zł107.99	zł107.99	zł294.40	4

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Trailers & screenshots

Watch the They Are Billions trailer →

About They Are Billions

✦ AI summary

Build and defend human colonies against billions of infected in this real-time strategy game set in a post-apocalyptic future. Manage resources, construct fortifications, command mercenary armies, and survive massive zombie swarms across a 48-mission campaign or endless procedurally-generated maps, all with the ability to pause and plan your every move.

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?

They Are Billions — game info

Platforms: Windows
Steam Deck: Playable
Player modes: Single-player
PC Game Pass: Not included

They Are Billions in the rankings

#38 most reviewed Steam game of 2019

Price alert

Get notified the moment the price hits your target.

They Are Billions price history

They Are Billions is $29.99 at Steam right now, compared across 7 stores. The lowest we have tracked is $18.74.

2026-09-26low $23.99 · now $29.99

Might be worth waiting — It tends to drop further during sales — usual sale price around $23.99.

They Are Billions price changes · since 26 Sep 2026
Date	Price	Store
21 Oct 2026	$29.99 ▲	Steam
20 Oct 2026	$29.81 ▼	CJS CD Keys
19 Oct 2026	$29.82 ▲	CJS CD Keys
13 Oct 2026	$23.99 ▼	Steam
26 Sep 2026	$29.99	Steam

Embed this price on your site

A live price and history chart for They Are Billions, updating on its own. Free to use anywhere — it carries a link back here and needs nothing else.

They Are Billions — questions & answers

What is the cheapest place to buy They Are Billions?: Steam at $29.99 — an official store, and the lowest of the 7 stores we compare for your region. Prices update through the day, so check the table above before buying.
Is They Are Billions free?: No — They Are Billions is a paid game. The cheapest we can find it is $29.99.
Has They Are Billions ever been cheaper?: Yes — the lowest we have tracked is $18.74. It is $29.99 today.
Is They Are Billions worth buying now?: Might be worth waiting. It tends to drop further during sales — usual sale price around $23.99.
Is They Are Billions Steam Deck compatible?: Mostly. Valve rates They Are Billions Playable on Steam Deck: it runs, but may need some manual tweaking — a community controller layout, or zooming in on small text.
Can I play They Are Billions on Mac?: Not natively — Steam lists no macOS version of They Are Billions. Mac players would need a cloud gaming service or a Windows compatibility layer.
Is They Are Billions multiplayer?: No — Steam lists They Are Billions as single-player only.
Is They Are Billions on PC Game Pass?: No — They Are Billions is not on PC Game Pass right now. The best price to buy it right now is $29.99.

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🎁 Complete the collection

Base game + 1 of 1 DLC at today's best prices.

$36.98

to own everything

They Are Billions - Soundtrack & Art Book

from$6.99

lowest tracked $1.74

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Sep 29, 2026

4

Recommended Sep 29, 2026

This game steals countless hours from you, played it in Early access and it was soooo good, time for full release

Recommended Sep 28, 2026

I like

Recommended Sep 28, 2026

its aight

Not recommended Sep 27, 2026

the way the game saves is crap

Recommended Sep 26, 2026

I enjoy survival mode and have consistently come back to it for MANY years.

Community reviews

—

0 reviews

No reviews yet. Be the first to review this game.

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