Call of Cthulhu - How to Upgrade Occultism

GameWatcher shares some tips on how to upgrade Occultism in Call of Cthulhu.

The main way to upgrade Occultism in-game is to explore the environment and find certain Occult books or artifacts. As you find these items, you get another point in your Occultism skill. Call of Cthulhu is very much a game about exploring each area as closely as possible, so this should be second nature. You also can get Occultism points for certain dialogue choices in conversations.

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Thanks Farflame!