To wit: open-source knock-offs of familiar games and genres, ports of old first-person shooters such as Quake II and Doom and lots of classic game console emulators.

换言之，这个平台就是：相似游戏和风格的开源复制品，类似《雷神之锤 Ⅱ》和《毁灭战士》的早期第一人称射击游戏端口，以及众多经典游戏的主机模拟器。

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The extremes of the gaming genres recall the classic contrast between Myst and Doom some 15 years ago.

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