In addition to the extremely entertaining co-op mode, there is also an 8-player vs. mode where 4 players become one of the "special" infected while the other 4 play the
games as usual as the survivors. This mixes things up quite well and helps to serve as a nice change of pace between or after sessions, but really isn't the draw of the
games in my opinion. There isn't much else you need to know, unless you're into typical "
games review" details such as graphics, controls, etc. I don't write that way, so I'm afraid I can't help you there. Let me just say that each and every element of the
games design, including graphics, controls and physics, makes the
games what it is and does not subtract from its value in any way.