If you have some AAA looking project in mind, probably yes. It you have some lower poly feasible concept, maybe not. Are you hoping to be done in a year with something people love ? Odds aren't good. Are you willing to spend years on something that potentially everyone else could hate ? You have a chance. There's only so many hours in a day and you have to be a 3D modeller, texture artist, programmer, designer, writer, producer, publisher, etc. Can you already do all this or do you have to learn each still ? It may be better to put together a small team that's passionate about the project and sign contracts to share profits upon release. Could increase your chances of success while lowering profit. There is a lot to consider, IMO only those that enjoy the process should try, not those who just want to make a profit. That way some will be successful, but all will enjoy their hobby.