Is it free?

In RC2, their are multiple game modes, but you have to buy a lot of them. The modes you do get for free are free flight and air racer. And in multiplayer you get free flight and air duel. The ones you have to buy have different prices, and there are a lot of them but the games really fun even if you don't buy them all. So to answer my question, I would say that RC2 is a freemium game where the game is free but you have to use money to unlock some things.