Build 288 (October update build) was accidentally shipped with existing save data included (used in testing). I believe anyone that has ran Build 288 may have had their save overwritten by Steam's update.
On October 4th I updated a new build that does not include any save data folders or files, as Skyfear.exe is supposed to generate those if they don't exist. Build 289 checks your save data for this DNA (Profile ID): S+2025.9.29+NORTHAMERICA+Mega-Voyager-71DCC88+monstermonster+DDDB48BB4B6F60DFD847D7A0F99B3FD9 (which is the test save) and if found, will ignore loading it. Which should result in the following:
If you have the test data, you should be prompted to create a new save.
If you have no data at all, you should be prompted to create a new save.
If you have data in your Steam cloud, your game should load normally.
If you haven't updated yet or haven't played since before October 1st, your game should load normally on the latest Build 289.
Apologies for any issues or confusion this has caused. Procedures have been updated to make sure this doesn't happen again.
If you DO have issues with the game, of any kind, please share with me via Steam discussions or Discord, as I certainly want to keep improving this game!
In any case, hope everyone is enjoying the latest updates!