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:

“As per our ESRB Mature rating STONE has drug references, use of alcohol and tobacco, sexual themes, crude humor along with strong language. There is no nudity, graphic violence or sex scenes. STONE is a Mature game for players that like alternative stories usually seen in cinema, tv and literature.”

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