The Historical Plausibility Project is a mod for Hearts of Iron 3 and its expansions with the goal of helping the game reach its full potential as a half-historical / half-sandbox game. The mod features a vastly improved AI, historical OOBs for every nation, complex internal politics, a reworked leadership system, the Soviet invasion of Poland, HOI2-style doctrines, capital ship modernizations, over 6,000 unique unit pictures, and much more. The HPP is the result of the efforts of the HPP team's five members of Slan, TheBromgrev, TZoli, SSmith, and Nephandus from the ParadoxPlaza forum, and its main forum is its official ParadoxPlaza forum, which Paradox requires proof of game ownership to enter. The HPP's forum contains the mod's FAQ, Submod downloads, country guides, and small hotfixes. In addition, part of the mod's previous work to the East Asia part of the map is now in the Their Finest Hour base game for everyone to enjoy.

Version 3.3.2 Available!

Version 3.3.2 Available!

Mar 3, 2014 0 comments

A new version of the mod is now available from the downloads section. The focus of this version was to fix bugs, adjust the Trade AI, add a Gurkha unit...

Version 3.3.1 Available!

Version 3.3.1 Available!

Dec 19, 2013 0 comments

A new version of the mod is now available from the downloads section. The focus of this version was to fix a large amount of bugs, adjust the production...

Version 3.3.0 Available!

Version 3.3.0 Available!

Oct 22, 2013 0 comments

A new version of the mod is now available from the downloads section. The focus of this version was balance in the Eastern European theater, with modifier...

Version 3.2.9 and updated Misc. Graphics Pack Available

Version 3.2.9 and updated Misc. Graphics Pack Available

Aug 28, 2013 0 comments

A new version of the mod is now available from the downloads section. The focus of this version was balance in the Chinese theater, with modifier adjustments...

Version 3.2.8 Now Available!

Version 3.2.8 Now Available!

Jul 28, 2013 0 comments

A new version of the mod is now available from the downloads section. A large number of small fixes, finalized armor and vehicle IC costs, and reworked...

Version 3.2.7b Available with DoW crash fix

Version 3.2.7b Available with DoW crash fix

Jul 11, 2013 7 comments

A new version of the mod is now available from the downloads section. A little database cleanup, increased MOT and MECH costs, and a fix for the Declare...

Version 3.2.7 Now Available!

Version 3.2.7 Now Available!

Jul 9, 2013 3 comments

A new version of the mod is now available from the downloads section. More AI adjustments, reworked armor/piercing values (still WIP), an event chain...

Beta Version 3.2.6 now available!

Beta Version 3.2.6 now available!

Jun 14, 2013 0 comments

A new beta version of the mod is now available from the downloads section. More AI adjustments, reworked armor/piercing values (still WIP), the Escalator...

Beta version 3.2.5 now available

Beta version 3.2.5 now available

May 28, 2013 0 comments

A new beta version of the mod is now available from the downloads section. More AI adjustments, lots of background fixes, and a few of the most glaring...

New Beta version of the HPP available, v3.2.0

New Beta version of the HPP available, v3.2.0

May 9, 2013 0 comments

A new beta version of the mod is now available from the downloads section. Some database issues were fixed along with a bunch of AI adjustments. We've...

New Alpha version of the HPP available, v3.1.2

New Alpha version of the HPP available, v3.1.2

May 1, 2013 4 comments

A new alpha version of the mod is now available from the downloads section. We believe the cause of the crashes has been fixed in this version. Some database...

HPP 3.1.1 Alpha Version for TFH Now Available!

HPP 3.1.1 Alpha Version for TFH Now Available!

Apr 24, 2013 9 comments

A new alpha version of the mod is now available from the downloads section. Several severe AI bugs were fixed as well as some events that were broken...

Initial alpha version of HPP out for TFH!

Initial alpha version of HPP out for TFH!

Apr 16, 2013 1 comment

The initial version of the mod for TFH is now available for download in the downloads section. Install instructions are underneath the download summary...

HPP for TFH status update

HPP for TFH status update

Mar 23, 2013 2 comments

Just wanted to make this so people know where I'm at in regards to porting the mod over to TFH. I got the mod to start up and ran it for a bit, but it...

HPP 3.0, final FTM version now available!

HPP 3.0, final FTM version now available!

Mar 16, 2013 0 comments

The mod's final version for FTM is now available for download. At this point, unless someone finds an absolute game-killer bug I have no plans to update...

Version 2.9.0 Now Available

Version 2.9.0 Now Available

Feb 23, 2013 3 comments

The latest version of the mod is now available from the downloads page. Major fixes include the broken Vichy creation event, the Rome-Berlin Axis is now...

Hotfix for 2.8.0 Out

Hotfix for 2.8.0 Out

Feb 11, 2013 5 comments

A mistake was made with the armistice decision, and a quick fix for it is available in the mod's main forum. The next version will be 2.9.0 and will be...

New FtM version out, HPP 2.8.0

New FtM version out, HPP 2.8.0

Jan 26, 2013 0 comments

A new version of the mod has been uploaded. The Major Nations picture and interface pack has also been updated. This version adds a few strategic resources...

Manuals for mod versions 1.0 and 2.0 now available

Manuals for mod versions 1.0 and 2.0 now available

Dec 2, 2012 0 comments

I've uploaded the manuals for the two completed versions of the mod here for reference. The mod isn't quite ready to be labelled "done" for the FtM expansion...

Empire of Japan After Action Report now posted

Empire of Japan After Action Report now posted

Nov 22, 2012 0 comments

To better show off how the mod works, I've created an AAR (aka Let's Play) to show gameplay changes to Japan and China. The AAR is using an older version...

Graphics Pack Update

Graphics Pack Update

Nov 14, 2012 0 comments

The graphics pack for the latest version of the mod has been split into three distinct downloads. This was done to help people with slow or unreliable...

HPP 2.6.9 Now Available

HPP 2.6.9 Now Available

Nov 4, 2012 0 comments

A new version of the mod is now available on ModDB. A lot of changes were made to the AI as well as the database, so this version is not save-game compatible...

The HPP mod and Their Finest Hour

The HPP mod and Their Finest Hour

Sep 17, 2012 0 comments

With Paradox's upcoming expansion for HOI3 coming out soon, I'd like to go over what the mod team plans to do for the future. At this point the FtM version...

HPP 2.6.83a Now Available

HPP 2.6.83a Now Available

Aug 27, 2012 0 comments

A new version of the mod is out. Major fixes include production tweaks for AI Denmark and Sweden and some research adjustments for Spain, the UK, France...

HPP 2.6.81a Now Available

HPP 2.6.81a Now Available

Aug 11, 2012 0 comments

A new version of the mod is out. Major fixes include reducing AI Italy's aggression level, some map tweaks, fixed the Bitter Peace borders, some trade...

2.6.8a Now Available!  Graphics Pack Updated!

2.6.8a Now Available! Graphics Pack Updated!

Jul 17, 2012 0 comments

A new FtM version of the mod is out along with an update to the FtM version's graphics pack. The graphics pack contains the missing technology interface...

HPP now on ModDB

HPP now on ModDB

Jul 9, 2012 0 comments

The popular HPP mod for Hearts of Iron 3 is now on ModDB! The HPP is a major modification to HOI3 and its expansions, changing many aspects of the game...

Icon
Hearts of Iron III: Their Finest Hour Icon
Platforms
Windows, Mac
Developer
HPP Mod Team
Contact
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Official Page
Forum.paradoxplaza.com
Release Date
Released Jun 1, 2010
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