There are a lot of scam projects nowadays and it is very hard to determine which of them are the legit ones. The best way you can do to know if a certain project is real is through reading the whitepaper and checking out the team of the project if you can find familiar faces of those who were involved on a successful project once. Always monitor how they check the activities within their projects so that you may know if they are really paying attention to it and taking good care of the project for a better outcome.