I purchased the official Explicit Content DLC for House Party (version 1.4.0.13106d) and attempted to install it on my Steam Deck.
Unfortunately, I encountered several serious issues:
1. The installer HPECInstaller142.exe does not detect the game installation, even when manually pointing it to the correct folder (steamapps/common/House Party/).
2. After extracting files manually, the game does not recognize the DLC.
3. Instead of expected files like ECData.assetbundle, ECManifest.txt, etc., the ExplicitContent folder only contains CutScenes, Textures, and Data, making it impossible for the game to activate the DLC.
4. There is no "Explicit Content" toggle in the in-game settings.
5. Running the installer via Wine/Proton on Steam Deck results in the same issue — the DLC is not properly installed or recognized.