So my question is, if it would be legal to copy the gameplay / game mechanics and levels from another game and release it? For example Tetris. This game gets cloned very often. But I’m asking as a general question.
If it is not legal, how to find out / get in contact with the company / person which holds the right to the original game?
In case you are wondering, why I’m asking: I finished a game but it uses exactly(!) the same game mechanics and levels. I only added some more levels on top of that, which I designed myself.
I’m not thinking about releasing it right now but I just want to hear what you guys think about it