How to install:

1. Run OpenIV

2. Drag and drop the folder modern_party_villa in the following path: mods/update/x64/dlcpacks

3. Go to: mods/update/update.rpf/common/data, open dlclist.xml and add the line: <Item>dlcpacks:\modern_party_villa\</Item>
                                                                                                                                               
4. Install latest Map builder (Required)