These “advergames” have become a staple of viral marketing campaigns for firms such as Burger King and Intel.

这些“广告版游戏”变成了公司病毒行销战的主题，就好像汉堡王和英特尔的案例那样。

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"As spreadable as butter on hot toast, " is how one London-based digital marketing agency describes its advergames.

BBC: Should word-of-mouth be child's play for advertisers?

Advergames are being used by all kinds of companies and public bodies.

BBC: Should word-of-mouth be child's play for advertisers?