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Yea the silent hill games have very detailed storylines. i personaly have the second the third origins and shattered memories, the shattered memories has a ver in depth story line. with the resident evil saga all the games tie together to form the entire story. starting at the umbrella facility the scientists working for Albert Wesker were in the making and testing of the T-virus and the antidote G-virus. but one of the viles of the T-virus wasshattered starting the airborne infection killing humans then reanimating their cells creating flesh eating zombies.there were a few survivors from the outbreak in raccoon city. Leon S. Kennedy, Chris Redfield, Claire Redfield, Rebecca Chambers, and a few others have to survive the nightmare while uncovering the secret of the hidden underground facility of Umbrella corporation. During this the U.S.S (Umbrella Security Services) which is weskers elite squad led by HUNK. set out to exterminate the remaining survivors. lol the story gets even more deepened and detailed each game tells from different points. Opperation Raccoon City Tells during story 1-3. but each game adds on more of the story. i hope this helps you for now about RE lol