Saving is not yet implemented for SD2IEC. There is simply almost no way to do this, without modification of the firmware. The Sams Journey SD2IEC loader could be a way to do this, but it only supports about 256 files on a single disc, which is too little for Lykia. Unfortunately, this feature is currently halted. I will inform you if there are updates on that matter.
Viewing post in Lykia - The Lost Island (C64 + Plus/4) [FREE] comments
The game has no problems at the moment.
There are about 500 files in a single folder and everything runs fine with that.
If we implemented saving with Sams Journey Loader, there would be the problem you describe. (about 300 files would be missing in the later game).
The Sams Journey Loader can only access 256 files. No matter if on a disk image or in a folder. It uses hexadecimal numbers for the file names like "1a", "ff", "ea" and so on. But these can only go from 0-255. So with Sams Journey Loader, only 256 files would be possible on the disc or in the folder.
We do not currently use the Sams Journey Loader. If we were to use it, we would run into problems. So saving is not possible at the moment. There is nothing we can do about that.
It is not a question of "file version" or "disk image" version.
If Krill's loader is ported (implemented in SD2IEC firmware) one day and supports saving, I may try the whole thing again with this loader (Krill's loader).
If you decide to use a loader system, the whole SD2IEC will stay in that mode (until a "reset" is done). There is not yet a widely supported (and fast) loader system that supports saving.
As I said, this feature is currently stopped. I will update this page here when there is news. There is nothing I can do about that. Saving to SD2IEC when using an IRQ loader has been a major problem for almost everyone out there for "ages". The forums are full of complaints about it and nobody knows a solution except to update the firmware with a custom patch.
You can write to "st dot mader at gmx de", I don't think it makes much sense to communicate about it here. The topic is too complex...
Okay understood, thanks for the detailed description of the problem. Then SD2IEC users indeed have to be patient, before they can save the game. Maybe it's possible in the meanwhile, to freeze the game at one point, by using a freezer-cartridge and continue playing from the freezed file then? But in some games freezing is a problem, so it must be tried out. For the freezed file, it should not be a problem, if it's directly on the SD-Card as a single file, but i haven't tried it out, to freeze this game. On my C64, on which the SD2IEC is connected, i also have a Final-Cartridge-3, so maybe i try this out the next days. Freezing, of course, is not an ideal solution here :) but at least that would be a reasonably good interim-solution, until the SD2IEC version makes it possible, to save at some point.