Adding custom cards on Owlbear Rodeo

This post is more a reminder for myself on how to do this. The help guidance for the Decks extension is good, but I had some key learnings to remember when I built my first custom deck of cards on Owlbear Rodeo for Flowers of Algorab. 

• Image type and size isn't too critical as long as OBR can read them. I used PNG and JPEG.
• If you want custom cards, don't bother using the upload options because they are a faff (you need the image files on a web server and it doesn't play nice with Dropbox type URLs). I also had issues with web server versions not creating images on the deck.
• Add the images to OBR as tokens (I put them in props).
• Use the custom tab.
• Drag to a scene and select the one you want, then use confirm selected for the back, then the front.
• Don't forget to add a value if the card has one.
• Click add to deck.
• Rinse and repeat.
• Use the 'create' option to drop the deck on the scene.
• Don't forget you can select the cards and group to get them back in the deck.
• Most importantly, export the deck file and save it somewhere. You'll need it if you want to add the deck in on another scene.

The chap who has written this extension is really helpful and responsive on the OBR Discord.

25 January 2026