If you were an alien anthropologist studying video game culture through t-shirts, you might deduce that there are only about 10 games in existence. The one about the plumber, the one about taking a caravan to Oregon, and a handful of others.
Where are the odd-ball game designs? How will posterity remember such classics as Ecco the Dolphin, California Games, and Earthbound if we don't make funny t-shirts about them? Oh man, and what about Myst? Somebody please make a Myst design -- it'll make our day.
Normal copyright rules apply. No text-only shirts.