Gaming firsts and milestones

How the studios started, which machines did it first, controllers that opened play up, and the games that took their series into 3D.

49 questions: 19 easy, 20 medium, 10 hard. Ten per run.

Where the answers come from

Every question in this pack was researched from at least two sources and re-read by a server before it went up; each answer credits the sources that were confirmed (67 publishers in all, such as The Strong National Museum of Play, Computer History Museum, Centre for Computing History, Nintendo). All sources for this pack.