Walkthrough F.E.A.R. Perseus Mandate [Interval 01 - Investigation: Underneath] @Amazing-Gaming199
Walkthrough F.E.A.R. Perseus Mandate [Interval 01 - Investigation: Underneath]  @Amazing-Gaming199
Uploaded April 2026 | Updated September 2026, 2 weeks ago
Walkthrough Interval 01 - Investigation: Underneath of the game F.E.A.R. Perseus Mandate (PC) on the Extreme difficulty on PC.

F.E.A.R. Perseus Mandate is the second standalone expansion pack for the first-person shooter psychological horror video game F.E.A.R. First Encounter Assault Recon. Developed by TimeGate Studios and originally published by Vivendi Games under the Sierra Entertainment label, it was released for Windows and Xbox 360 on November 6, 2007. The game is not a narrative sequel to Extraction Point, but rather a "sidequel" that runs parallel to the second half of the original F.E.A.R. and most of Extraction Point. The story follows a new player character who is a member of a secondary F.E.A.R. team tasked with investigating Armacham's Perseus Project. Finding themselves facing a previously unknown and highly skilled mercenary squad, the team must race to stop the mercs from acquiring potentially dangerous information pertaining to Alma Wade and Paxton Fettel.

A prominent gameplay element in F.E.A.R. Perseus Mandate is "reflex time"; an ability which slows down the game world while still allowing the player to aim and react at normal speeds. This effect is used to simulate the player character's superhuman reflexes, and is represented by stylized visual effects, such as bullets in flight that cause air distortion or interact with the game's particle system. The duration which reflex time lasts is limited, determined by a meter which slowly fills up automatically when the ability is not being used. The player can permanently increase the size of the reflex meter by picking up reflex boosters. Other pickups available during the game include medkits (of which the player can store ten), protective armor (reduces the amount of damage the player takes during combat), and health boosters (permanently increase the player's health meter).

Perseus Mandate also features three bonus missions that are unlocked after the single-player campaign is beaten. These bonus missions are similar to the "Instant Action" missions of the Xbox 360 and PlayStation 3 versions of the original F.E.A.R., and have the player progressing through small plot-free levels while fighting through waves of enemies.

Perseus Mandate is a sidequel to the original F.E.A.R. and Extraction Point, beginning moments after Armacham Technology Corporation (ATC) security turn on F.E.A.R. and kill Aldus Bishop as he is being extracted by Delta Force.

As the game begins, the senator heard at the end of the original game orders a man named Gavin Morrison to retrieve Perseus at all costs. Meanwhile, a second F.E.A.R. team composed of Cpt. Raynes, Lt. Chen, and an unnamed sergeant (the player character), is preparing to infiltrate ATC's Global Data and Security Center. Their orders are to find and retrieve anything related to Project Perseus, a classified ATC operation that was attempting to develop a unit of telepathically-controlled clone soldiers (known as Replicas). As ATC Security and the Replicas openly battle in the streets, F.E.A.R. breach the building, only to discover that an unknown group has already infiltrated the facility.

Link to the Game:store.steampowered.com/app/21090/FEAR
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Walkthrough F.E.A.R. Perseus Mandate [Interval 01 - Investigation: Underneath]

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