Longest videogame marathon on a survival-horror game

According to Official Guinness Records,

The longest videogame marathon on a survival-horror game is 46 hr 34 min 48 sec, achieved by Thomas Frey (Switzerland), in Lugano, Switzerland, on 27 to 29 September 2017.Thomas has been playing videogames since he was a child.

For a complete list of 2017 records, please visit 2017 Guinness Records in Switzerland.

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