This is the most common scenario. You have a mod that requires Stardew Valley v1.5.6 (like the popular Stardew Valley Expanded older builds) but your current game updated to v1.6.
Since you can't downgrade the Steam version easily, here is the legitimate free solution using the SMAPI compatibility matrix. stardew valley compatibility version download free
Compatibility is the most technically significant aspect of the user query. Due to the game's long lifecycle and active modding community, "compatibility" usually refers to one of two scenarios: This is the most common scenario
A: Yes, technically. If you own a GOG copy, the offline installer has no DRM. You can install it to a USB stick and run it on any PC. This is a free backup for personal use. Sharing the USB violates the EULA. Compatibility is the most technically significant aspect of