Buy INTERREGNUM PC Key

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Where to pre-order INTERREGNUM? As of 10 Nov 2026 we have 1 offers across 1 stores, the cheapest being A$4.25 at Steam. Pre-ordering gets you the game on release day, usually with the order bonuses, at a price you already know today. If day one is not the point for you, it is worth knowing that the price normally goes lower after launch.

Release: 2026
Post-Capital Games
Post-Capital Games
Keyshops
Unavailable
Buy in Official Store:
A$4.25
Buy in Keyshops:
See price history

Official Stores (1)

DRM:
Steam
Steam
Steam
INTERREGNUM
Windows
+1
5d ago
DRM:
Steam
Steam
A$4.25

About INTERREGNUM

INTERREGNUM - about the game

INTERREGNUM is a turn-based strategy game for the Commodore 64. Command armies, recruit units and capture bases across three scenarios:

  • MEDIEVAL MAYHEM (1-4 players) - Capture castles and defeat enemy armies to claim the throne

  • WEEK OF THE DEAD (1 player) - Defeat the zombie horde during the week-long invasion

  • A SUNNY DAY IN SPACE (1-4 players) - Collect energy and capture the portal to escape the raging sun

Play locally with up to 4 players or take on the computer. Commodore 64 tape, disk and cartridge images included.

Interface:
English
Subtitles:
English

Age rating

Unavailable
Historical low
Price history from official stores
A$3.40
Steam
2 weeks ago
Price history from keyshops
-
-
-

FAQ

8 questions

Before you start looking for a cheap INTERREGNUM PC key, check the essentials. Developed by Post-Capital Games. Published by Post-Capital Games. PC released date: 2026. Genres: Strategy. Categories: Multi-player, PvP, Online PvP, Shared/Split Screen PvP, Remote Play Together, Family Sharing, Single-player, Full controller support, Shared/Split Screen, DualShock Controller Support.

Q

Where to buy a cheap INTERREGNUM Steam key or CD key?

Using our price comparison and verified discount codes, you can buy a INTERREGNUM key for as low as A$4.25. This deal is available at Steam and is among the cheapest offers on the market. All keys listed on XD.deals are delivered digitally and eligible for instant download after payment. Prices already include processing fees and applied promo codes, so you always see the lowest INTERREGNUM price on PC. Check the INTERREGNUM price history to buy at the best moment.

As of our last update (we refresh Steam pricing multiple times a day), the INTERREGNUM Steam price is A$4.25.

Our price tracker covers both official retailers and key marketplaces, so you can find INTERREGNUM on sale even outside seasonal promotions. We currently detect 1 active offer from official stores and keyshops. Check the table above, compare against the historical low, and set an alert so you never miss the next price drop.

Based on our data, INTERREGNUM is not currently available on GeForce NOW. You will need to run it locally on your PC. Browse games available on GeForce NOW.

Yes. INTERREGNUM has an official page on the Steam Store. You can also buy a INTERREGNUM Steam key from third-party sellers. Our price comparison currently includes 1 offer with Steam DRM. Pick one to ensure your INTERREGNUM download happens on Valve's platform.

Not at this time. Valve marks INTERREGNUM as Unsupported on Steam Deck. Keep an eye on XD.deals - we track Proton updates and community fixes. Browse games that are Steam Deck Verified or Steam Deck Playable.

According to our data INTERREGNUM is not currently available on PC Game Pass, EA Play or Ubisoft+. We are still filling in the catalogues of these services, so it is worth confirming the status at the source before you decide. If you are buying, XD.deals will help you find the lowest price.

No - XD.deals is not a store. We are a price-comparison service that tracks the best INTERREGNUM deals across official stores and verified keyshops. Click "Go to Store" next to any offer and you will be redirected to the retailer's website to complete your purchase.

Best prices for INTERREGNUM

1 Steam Steam Official
A$4.25

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