Note: You can only play with others who are also specifically on v1.9.1. A Note on Third-Party Downloads
To play online with others on this specific version, everyone in the lobby must have the same "checksum" (the version code). Right-click in your Steam library. Select Properties > Betas .
If you’ve played newer versions, go to Documents/Paradox Interactive/Hearts of Iron IV and delete the shadercache folder to prevent crashes. Note: You can only play with others who
The was a pre-order/launch bundle that has since been discontinued and replaced by the Ultimate Bundle . However, if you own any version of the game on Steam, you have access to all previous patches. Open your Steam Library . Install Hearts of Iron IV normally. Step 2: Rolling Back to v1.9.1 (Husky)
Steam will automatically download a small update to revert your game files to that 2020 version. Step 3: Enabling Online Play Select Properties > Betas
Because v1.9.1 is a legacy version (modern versions are 1.14+), the "proper" way to get this specific build is to use the official version-rollback feature provided by Paradox Interactive. Step 1: Purchase and Installation
This sounds like you are looking for a specific, older version of the (v1.9.1) to play online. However, if you own any version of the
Click "Multiplayer" in the main menu. You can use the Steam "Invite Friend" feature or the Server Browser.