Hearts of Iron IV Dev Tracker

Another important thing to note is that this patch removes 32-bit support for Hearts of Iron IV.

If you have a 32-bit OS you will need to roll back to continue playing

The 1.7 'Hydra' patch is here!

Bugfixes, re-balancing some parts of naval warfare, and adding lots of new music as part of the HOI Classics radio station!

Check out the full patch notes here:

This afternoon we will be releasing 1.7, the Axis Armor Pack and the Radio Pack. Stay tuned!

Three whole years since we first released!

What would you like to ask Podcat about Hearts of Iron IV’s development?

Tomorrows @HOI_Game diary will be celebrating the 3 year anniversary and talk about its development. Do you have any questions you would like me to answer?

Now live! Don't miss the battle for France in today's Three Day War!

Don't miss tonight session! Its going to be a real nailbiter but I hope the central powers can be stopped in time!

Just an hour to go until the resumption of the #ThreeDayWar for our second session!

Make sure to join us as German tanks crash into French defenses and the British and Italians ready their armies…

Catch all the action from 1900 CEST:

Heard in the PDX office from a member of the Franco-Iberian Alliance: "Please save me Daniel... we need the Swedes!"

#ThreeDayWar

If you want to remind yourself what our teams are striving for in the game, you can find all the info here:

Remember to tune in tonight at 1900 CEST for what promises to be a VERY interesting second session!

Missed the first session of the #ThreeDayWar last night?

Well fear not, because we're here with YouTube highlights of events so far!

Check out all the action here:

We're into the last day of the Strategy Weekend Sale!

Now's the time to grab those expansions you've had your eye on..

Check out all the deals (and watch some streamers too!) at

Missed the teams objectives? Here they are for you to muse over!