Plague Inc: Evolved 1.17.1 〈FREE · 2026〉

The official release of version 1.17 (Mutation 1.16) occurred on June 5, 2018, followed by version 1.18 (Mutation 1.17) on December 5, 2019. While specific standalone notes for a "1.17.1" minor revision are often bundled within these major updates, the 1.17 era focused primarily on the Royal Update , which introduced significant new scenarios and gameplay improvements. Update Highlights (Version 1.17 Series)

: Improved logic for how humans deploy defenses, making late-game strategies more difficult for the player. Plague Inc: Evolved 1.17.1

: A more challenging version of the board game scenario for advanced players. The official release of version 1

: Major updates to core disease types like Parasite , Prion , and Neurax Worm based on player feedback to ensure fair but challenging gameplay. : A more challenging version of the board

If you are playing on Steam, your game should update automatically to the latest available version. You can verify your version in the bottom-right corner of the main menu. For those on console (Xbox, PlayStation, or Switch), updates are pushed via their respective stores.

: A new scenario where players must infect the world to sell copies of the Plague Inc. board game.

The 1.17 series included various technical refinements and quality-of-life updates: