I am relatively new on GOG, but I was wondering why Terraria has no cloud save function on GOG. At least GOG Galaxy says so. Four of my other games save to the cloud. Most of my PC games are on steam and as far as I remember all games have a cloud save.
Is there a workaround for this issue? I just started Terraria but since you can spend dozens of hours in this game, I want to make sure my save file won't get lost.
For newer games (meaning, in this case, games that are still being actively developed and/or supported by the developer), the devs are usually the ones who implement cloud saving (though I have heard of at least one instance where GOG took care of it before they can!). Terraria
has only received a handful of updates in the last year or two, and I honestly don't know if there's even much active development being done on it anymore, so I wouldn't look for full support for Galaxy features until/unless they wind pushing another major content update.
You probably don't need to worry too much about losing saves, though -- the game autosaves periodically by default, and it also creates its own backups in case the main save gets corrupted. Until cloud saving is implemented, if you're really worried, just periodically go to your Terraria folder (default location for the standalone version is C:\Users\[your username]\Documents\My Games\Terraria\, but I think Galaxy puts them somewhere else by default), zip up all the subfolders named after your characters and worlds, and back those archives up to an external drive, or upload them to some cloud service. Once every couple weeks should be sufficient, and even once a month would probably be fine.
For whatever it's worth, I've never experienced savegame corruption with this game. I think I occasionally lost a bit of progress due to the game crashing or hanging, but even that didn't happen a ton...and cloud saving wouldn't help you there, anyway. :)
BTW: You picked a good time to start playing. Enjoy all the cool Halloween costumes and stuff!