HisDudeness3008: After I've purchased Oxenfree on GOG, I've bought a bundle on HB for the other games in it, and there was Oxenfree as well. So I've got the opportunity to compare the two versions.

I've noticed the GOG version is 431 MiB larger (~3.2 GiB vs ~2.8 on HB). The difference lies in the folder game/Oxenfree_Data/StreamingAssets, exactly 431 MiB in size. It contains 5 Mp4 videos of making-of and such. They can be accessed in-game via Options→Documentaries. This folder isn't present in the HB version.

So I booted it expecting not to find the Documentaries section of the options. Instead, there it is. With all five videos, which play correctly. I've thought "they stream them from the internet". I tried without any connection and they played anyway. So I thought "maybe it downloaded them on first boot, even if it seems strange as there was no waiting time". Nope, the game folder still was 2.8 GiB big.

How does it work? Why Does GOG version have that folder? Where do you reckon the HB version gets the videos from?

I also tried to move the video folder away and see if the GOG version could play them nonetheless. It did. My hypotheses is the video are already in the game files, in some encrypted format the game knows how to decode, how it often happens with game multimedia content (such as songs) so the user can't copy it from the game files and have it standalone without buying it. The StreamingAssets folder would then just be a redundant container of those movies, directly accessible to the user if he wants to port the videos to view them where the game isn't installed, but completely useless to the game. In other words, a "goodie" shipped with the game and not separately, as happens with all other GOG goodies. Is that so?