IDK if this will work for you but I went to System Settings > Privacy & Security > Security
In the "Allow applications from" dropdown you should be able allow orvn_demo.app to run and select "open anyway" when it warns you about potential security issues from an unverified app.
cactusbrandy
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A member registered Jun 13, 2020
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Slay the Demon King (ORV fangame) comments · Replied to bred_styks in Slay the Demon King (ORV fangame) comments
We played this remotely with the help of some online tools last year. It's a fantastic system for storytelling and worldbuilding, and I feel that you could use this game as a writing exercise.
I don't think I'm built for anything that involves storytelling, so I really appreciate how flexible the rules were (explicitly having the option to skip my turn was very reassuring to me). Drawing the constellation map (we chose to have a colorful one) and having prompts/archetypes helped a lot, as was the collaborative nature of connecting characters and events. Overall it was a very relaxing experience, I enjoyed it a lot!