They Are Billions — cheap CD keys, compare prices
Is it worth buying?
- Reviews are solid. (Steam 85%)
- The price is at or near its all-time low — a good time to buy.
Estimate based on public reviews (Metacritic/Steam) and price history — the final call is yours.
About the game
They Are Billions is a strategy game set in a steampunk post-apocalypse where you build and defend colonies against endless hordes of the infected. It blends base-building and resource management with tense defense, since a single breached wall can chain-react into total collapse.
Did you know?
They Are Billions became a hit during Early Access thanks to its punishing difficulty, and later added a full story campaign mode.
Best price today
€23.99
lowest in tracked period: official €23.99 · keyshop €28.11 near low
The cheapest They Are Billions key right now costs €23.99 at Steam — the best of 5 compared offers. The lowest price we have recorded for this game: €23.99.
The average low over the past 5 months was €26.30.
Prices as of
Steam best price Official store
Gog Official store
GameSeal Marketplace
Gamivo Marketplace
No offers match these filters — try widening them.
Listed seller price shown — payment fees may vary by method.
There are also offers of another kind (Gift) — show (2)
These are not ordinary keys. A gift is usually region-locked and arrives through someone else's account — if the region does not match, the game will not activate. An account means you get someone else's login: the game never becomes yours, and it breaks Steam's rules. A DLC or a bundle is not the base game. That is why none of them count towards the price at the top of the page.
They Are Billions prices by store 6
| Store | Type | Price |
|---|---|---|
| GameSeal | Marketplace | €17.66 |
| Gamivo | Marketplace | €18.37 |
| Steam | Official store | €23.99 |
| Gog | Official store | €26.65 |
| K4G | Marketplace | €63.41 |
| Driffle | Marketplace | €67.40 |
Lowest — official stores
€23.99
Oct 2026
Lowest — keyshops
€28.11
Aug 2026
Price history
last 86 daysMonthly price lows
| Month | Lowest official | Lowest keyshop |
|---|---|---|
| Oct 2026 | €23.99 | €51.83 |
| Sept 2026 | €25.74 | €31.28 |
| Aug 2026 | €25.63 | €28.11 |
| Jul 2026 | €26.13 | — |
| Jun 2026 | €29.99 | €90.60 |
Lowest in-stock price per month from our price history; the current month is the low so far.
How to activate your key
- Steam key — open the Steam client → Games → Activate a Product on Steam → enter the key. Stores with this activation: Steam, Gamivo, K4G, Driffle
- GOG key — on GOG.com → Redeem a code (or in GOG Galaxy: Add games & friends → Redeem GOG code). Stores with this activation: Gog
Price alert Catch alert Price alert
Confirm in our Telegram bot — no account, no spam.
All-time low so far: €23.99
System requirements
| Minimum | Recommended | |
|---|---|---|
| OS | Windows 7, 8, 10 (32 and 64 bits) | Windows 7, 8, 10 (64 bits) |
| Processor | INTEL, AMD 2 cores CPU at 2Ghz | INTEL. AMD 4 cores CPU at 3Ghz |
| Memory | 4 GB RAM | 8 GB RAM |
| Graphics | Intel HD3000, Radeon, Nvidia card with shader model 3, 1GB video ram. | Radeon 7950 or above, Nvidia GTX 670 or above. 4GB video ram. |
| DirectX | Version 9.0c | Version 9.0c |
| Storage | 4 GB available space | 4 GB available space |
Similar games
Video reviews
4:08 They Are Billions Early Access Review
IGN
11:23 They are Billions Review 2019 - Worthabuy?
Worth A Buy
8:38 Should You Buy They Are Billions? Is They Are Billions Worth the Cost?
Game Advisor
Reviews are made and published by independent YouTube channels; they load only on click.
About this game — FAQ
Can They Are Billions be played single-player?
Yes, They Are Billions is a single-player game.
What languages does They Are Billions support?
They Are Billions is available in: English, Spanish - Spain, French, German, Japanese, Korean, Polish, Portuguese - Brazil and 4 more.
Does They Are Billions use Steam Cloud saves?
Yes, They Are Billions uses Steam Cloud, so your saves sync across devices.
FAQ
Where is the cheapest place to buy a They Are Billions key?
The cheapest They Are Billions key is currently sold by Steam for €23.99. That is the best of 5 offers we compare; prices are refreshed regularly. The lowest price we have ever recorded for this game: €23.99.
How much does They Are Billions cost?
They Are Billions currently costs from €23.99 — the cheapest offer across the stores we track.
Is Steam an official store or a keyshop?
Steam is an official store — keys come directly from the publisher or an authorized distributor.
Are keys from these stores legal?
Buying is legal — keys come from the grey market, so a small deactivation risk exists. So before paying, check the seller's buyer protection.
Which key region should I pick?
Global activates everywhere. Regional keys (Europe, North America, RU-CIS) only work on accounts from that region — use the Region filter to match your account.
What is an activation platform?
The service where the key activates — Steam, GOG, Epic or the publisher's platform. A key for one platform won't work on another, hence the separate filter.
What's the difference between editions?
Standard is the base game; Deluxe usually adds an expansion or bonus content. The edition filter shows exactly that variant, with no mixed prices.