Eroico has been released on Steam:
https://store.steampowered.com/app/947600/Eroico/
If you download the demo, your unlock codes (Eroico or Noaika) can be placed in the game folder called "cloud", which will unlock the game as usual (uninstalling it may remove it from the libary though). If you've bought the game before and want a Steam code, email me and I'll see what I can do. However it might not happen right away, since I don't have the ability to create codes freely, they must be requested from Steam.
There have been a few minor updates:
-F1 now activates a cheat mode (the 1 key refills health and magic, 2 restarts the room for speed running practice.)
- New title screen
- The ending has different music, and is now animated.
- A few bug fixes.
- The Steam version should now automatically apply button mapping to Xinput controllers, which aren't supported normally in GM8.
- Cloud saves.
Edit: I'll be uploading the updated version to all the other platforms soon. (DLsite, Nutaku, Mangagamer, here.)
