Unable to upload a pdx file to my Playdate using the Playdate Simulator in SDK 3.0.0

SDK Bug Reports
1

So, I'm pretty sure I've found another bug/glitch in SDK 3.0.0 and macOS. I've been unable to upload a .pdx file to my Playdate using the Playdate Simulator. I've confirmed that my Playdate is connected to my Mac as Playdate Mirror works just fine.

If I attempt to use the "Upload Game To Device..." option, in the "Device" menu, Playdate Simulator will not recognize any .pdx file at all and I can't select the .pdx file.

Screenshot 2025-10-05 at 12.16.13 PM
Screenshot 2025-10-05 at 12.16.13 PM1600×896 87.3 KB

I am able to use the "Get Screenshot", "Boot to Data Disk", "Boot to Recovery Disk" & "Show Device Info" options without any issues though.

I never used the feature in the 2.7.6 SDK so, I'm not sure if this is a new issue with macOS or not. I'm running macOS 15.7.1. Am I missing something/doing something incorrectly?

Thanks so much :+1:

4 Likes
2

So, after some other messages in the Playdate Squad discord, it looks like the Simulator can't see/load any .pdx file. I just tried opening a .pdx file from the "File --> Open..." option and the pdx files are grayed out here as well:

Screenshot 2025-10-05 at 6.19.33 PM
Screenshot 2025-10-05 at 6.19.33 PM1600×896 126 KB

1 Like
3

Thanks for the report, we’ll look in to it ASAP.

3 Likes
4

No problem! Thanks for looking into this.

5

I have the same problem. I’m on a M1 Macbook Air running Tahoe 26.0

6

This will be fixed in 3.0.1 coming soon, in the mean time you can drag and drop your game onto the main window to open it quickly.