I joined in on the HW2 crazy super late. But, I did eventually join in. I absolutely loved the first game, and the second game didn't disappoint. It was a very enjoyable gameplay experience, updating the beloved gameplay mechanics and exeprience of the first and into a new era of graphical and gameplay fidelity. It's definetly worth your time, especially if you can find the game when it's on sale. As far as RTS games go, it's very easy to get into, and is very forgiving to the player- unless you play on some of the harder difficulties, then it provides a very fair challenge. It's not neccesarily crucial in order to enjoy Infinite, or you could watch a summary on Youtube or the like. But, I would highly recommend the game.