Firaxis has announced a special 25th Anniversary Edition of its upcoming strategy game Civilization VI.

Due to release on October 21, the 25th Anniversary Edition (pictured above) includes the base game plus all bonus digital content featured in the Digital Deluxe Edition (including access to four future DLC packs), plus an exclusive 25th Anniversary commemorative coin set, a 100-page 'Civilization Through The Years' art book and the Aztec Civilization pre-order bonus.

If you want one, though, you'll have to be quick. Only 20,000 copies of the special anniversary edition will be manufactured worldwide. A UK price hasn't been announced, however, so we don't yet know how much it'll set you back over the standard edition.

"The vitality of Civilization is in the new ideas that each design team brings to the game as well as the passion and feedback from an incredible community," said Firaxis' Sid Meier.

"We hope players enjoy the vibrant living world and the new features the team has created in this latest offering. I'm proud of the work they've done, and I hope you will enjoy playing Civilization VI as much as they've enjoyed making it. Here's to the next 25 years!"

Civilization VI launches on PC on October 21.

Source: Firaxis Games/2K Games