I ****ing hate managing quotes:
The Fallout one was reply to releasing unfinished.
Half-Life made the story popular, it sold like hotcakes. DE sold nothing.
DS sold like hotcakes too, before MW.
I know you mean the Hell level. You've probably never played Undying
Screw it, Battlezone had vehicles way before anything else
The funny thing is, we can't know if these things became a standard thanks to those games. e.g the level-by-doing thing is only on those games we listed, so I don't think it's exactly standard stuff. And thanks to Craigboy I'm not sure whether I should be arguing over being first to do the thing, making it popular or setting a standard. Those things are not the same, I think we can agree to that.