Hi there. I just want to give a heads up regarding support of the Steam release of Clover Day's Plus:
It's the same engine as previous NekoNyan ports.
The encryption mechanism is the same as the one in Aokana/Senren Banka Switch, Parquet Android.
You'll be able to unpack the .dat files by passing "portable" to the format argument of the tool, for example:
NekoNyanDatTool.exe --input "C:\Install Folder\Clover Days Plus_Data\StreamingAssets\adult.dat" --output outputFolder --unpack --format portable
(Beginning of rant)
Once again the assets are needlessly encrypted, killing any compression opportunities for the download size and making Steam waste its time trying to compress what's there to the benefit of absolutely no one and detriment of everyone. But at least it's the same stupid system so you guys can use keep using the same tool.
Also using il2cpp for the very needed maximum performance on a glorified image viewer with overlay text, where all of the code that had a chance of putting a load on the CPU (namely Emote) would have already been on native libraries anyways, with the usual Unity bloat that will make even the biggest CPU caches scream and run in fear, which no native compiler will ever fix. I hope next time they exclude the Augmented Reality, Web Cam, and Android modules from the Windows build of a Visual Novel (and this is assuming that Unity provides that capability, you'd assume considering how widely used the engine is... I'd be slightly surprised and disappointed if that's not a thing EDIT: okay it is a feature: https://docs.unity3d.com/Manual/upm-ui-disable.html).
I pray that they don't change the "encryption" format, not because it'll be hard, it'll just be even more bothersome because of native code shenanigans, which is just a waste of everyone's time.