Is This a Copyright Violation?
https://actasf.netlify.app
It is just a quick app that I put together with JQuery and Bootstrap. It isn't finished and I posted it to netlify to get some feedback from users. It is a test version. The game is fun but I find the hit and damage process to be a bit tedious so I wrote this app to make it simpler.
While it was being developed I posted some screenshots of it and had the company that produces the game, Amarillo Design Bureau, tell me that it violated their copyrights.
I asked for specific references to the material and what copyrights it violated but never got a response. AFAICT there is no copyright protection for names and numbers. I searched the trademark database t make sure that I wasn't inadvertently referencing a trademark.
The company is a small 'mom and pop' operation (well just pop now as mom retired) and so I made sure that I wasn't adding anything to the app that would make it possible to play the game without having a copy of the rules.
Today they sent a DMCA takedown threat to me. I reiterated by belief that none of the material on the site is covered by any copyright or other intellectual property rights and again asked for specifics of the supposed violations.
Am I correct that the material I am using is not covered by copyright? It is just numbers and names from a game.