Games
Steam
Crusader Kings III

Games3 shops

Crusader Kings III

Platform

Lowest on Steam

£9.85

at CJS CD Keys, key reseller. No checkout fees.

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Prices checked 6 hours ago

Not ready to buy?

Watch it and we'll email you the morning after it drops, at whichever shop it is, in any edition or form, with a link to buy. We count a shop's fee where its feed gives it.

6 prices on Steam

In stock first, then what you'd pay with any fee the shop's feed gives, then price. Commission never changes the order.

Show key shops

Key shops

Key shops sell keys bought from other markets or from other sellers, so check the region and the shop's refund terms.

CJS CD KeysKey resellerLowest price hereIn stock · Checked 6 hours agoUK · Key
£9.85No checkout fees
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2 more from this shop
1. CJS CD KeysKey resellerIn stock · Checked 6 hours agoEurope & UK · Key
  £9.92No checkout fees
  AdShop at CJS CD Keys
2. CJS CD KeysKey resellerIn stock · Checked 6 hours agoGlobal · Key
  £10.62No checkout fees
  AdShop at CJS CD Keys
KeycenseKey resellerIn stock · Checked 6 hours agoEurope · Key
£10.41Some ways to pay add a fee
AdShop at Keycense
KinguinMarketplaceIn stock · Checked 6 hours agoRegion not stated · KeyKeys from other sellers on Kinguin
£11.99£9.91 + the £2.08 fee its feed givesPlus fees at checkout
AdShop at Kinguin
1 more from this shop
1. KinguinMarketplaceIn stock · Checked 6 hours agoEU · KeyKeys from other sellers on Kinguin
  £11.99£9.91 + the £2.08 fee its feed givesPlus fees at checkout
  AdShop at Kinguin

Prices, stock and regions as each shop listed them, checked 6 hours ago. Some shops pay us when you buy through these links; that never changes the order. How that works.

The price on Steam over time

The lowest you'd pay at each, with the fee each shop's feed gives, among offers known to work on a UK account.

Key shops

Now: £9.85
Lowest since 23 Oct: £9.85

How to redeem it on Steam

Open the Steam app on your computer and sign in.
Choose Games at the top, then Activate a Product on Steam.
Enter the key and follow the steps.

Or in a browser: store.steampowered.com/account/registerkey

Steam leaves region limits to each game's publisher. If a key won't activate, the shop you bought it from handles it: Steam doesn't refund keys bought elsewhere.

From Steam's help pages, read 23 October 2026:

Regions, in the shops' words

UK: Sold for UK accounts: the one word that plainly meets PlayStation's and Xbox's rule that a code match your account's country.
Europe, EU, EU & UK, EMEA: Sold for Europe, and the shops' pages I checked say these activate on UK accounts. The platforms don't name the UK: Nintendo UK says to use a code meant for Europe, and PlayStation's terms ask for one from your account's country.
Global, worldwide, region free: The shop says it activates in any country, the UK included.
Region not stated: The listing names no region. At ShopTo, CJS CD Keys and Kinguin, the shop's own terms or every page I checked say these work on UK accounts; at Keycense they vary, so theirs never set a price here.

No platform defines these words: each is the shop's, so check the region on its page before you buy.

About the game

Crusader Kings III is a 2020 RPG and strategy game from Development Studio and Lab42, published by Paradox Interactive. It has single-player and multiplayer modes. PEGI 12.

RPG Strategy

Facts from Wikidata

Modes: Single-player, Multiplayer
Developer: Development Studio, Lab42
Publisher: Paradox Interactive
Series: Crusader Kings
First released: 2020
PEGI rating: PEGI 12What the ratings mean

DLC and add-ons

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Questions

How much is Crusader Kings III?

On Steam, from £9.85 at CJS CD Keys (key, no checkout fees); on PlayStation, from £44.99 at CJS CD Keys (key, no checkout fees). Prices checked 23 October 2026.

Can I buy Crusader Kings III from an official store?

Not now at the official stores I check: only key shops have it in stock, and each row says which region its key is for.

Will a Crusader Kings III key work on a UK account?

The prices I lead with are only from offers their shop says work on a UK account. Steam leaves region limits to each game's publisher. If a key won't activate, the shop you bought it from handles it: Steam doesn't refund keys bought elsewhere. PlayStation's UK terms say a code works only on an account registered in the country the code is for, and its help pages say an account's region can't be changed.

How do I redeem Crusader Kings III?

A Steam key goes into the Steam app (Games, then Activate a Product on Steam) or Steam's website, and the game stays in your library. PlayStation codes are redeemed on your console or in PlayStation Store online, and only work on an account from the region they were sold for.