On steam, the game uses Steam Auto-Cloud to synchronize game progress. The configuration of what steam uploads is not stored locally, so we can't modify that. With a bit of experimentation we can however determine that (at the time of writing) it is configured to upload all files in the profile that end in .owsave. We can take advantage of that and just rename the mod save file from .json to .owsave. (The actual game save files are is just json files with other extensions as well anyway.)
To verify this works, the steam cloud contents can be viewed here.
On steam, the game uses Steam Auto-Cloud to synchronize game progress. The configuration of what steam uploads is not stored locally, so we can't modify that. With a bit of experimentation we can however determine that (at the time of writing) it is configured to upload all files in the profile that end in
.owsave. We can take advantage of that and just rename the mod save file from.jsonto.owsave. (The actual game save files are is just json files with other extensions as well anyway.)To verify this works, the steam cloud contents can be viewed here.