I am making a game that has a bit of a twist in the original breakout (brick breaker) formula. I am hoping to call it something like “Nu Brick Breaker” or “Brick Breaker 2.0,” but I am concerned that it would violate some kind of a copyright rules.
Names aren’t copyrightable. But they can be trademarked. Most countries have searchable trademark databases. Alternatively you can get a lawyer to do the search for you.
As Kiwasi said, trademarks are the IP to check. But there is also “passing off”. As there is a game called Brick Breaker, if you make Brick Breaker 2.0, what is the expectation by customers that yours is from the same company as the first one? You could be in trouble if it looks like you are trying to pass yourself off as them.