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This usually happened when the player character sees monsters and is hurt by those monsters.
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One unique feature of the game was the inclusion of "sanity effects," where the game would spontaneously react to in-game events when the characters sanity depleted. The game is similar to many third-person adventure games and draws a lot of inspiration from the works of H.P Lovecraft, in both its creatures and its plot.
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Despite its Gamecube release, Eternal Darkness was originally planned for the Nintendo 64. Eternal Darkness: Sanity's Requiem is a psychological horror game developed by Silicon Knights, released in June 2002 for the Nintendo Gamecube.
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