This Game may contain content not appropriate for all ages,
or may not be appropriate for viewing at work.

The developers describe the content like this:

“Dwarf Fortress contains textual descriptions of violence, and static 2D sprites that may have violent ends. Alcohol consumption is required for a dwarven fortress to run smoothly, as described in text. Dwarves can experience mental anguish, and in extreme cases this can lead to them taking their own lives or the lives of others.”

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