Question: Who was the main designer of the horror video game, to which, Allison Road was considered to be a spiritual successor ?

Context paragraphs:
World in Conflict: World in Conflict is a 2007 real-time strategy (RTS) video game developed by the Swedish video game company Massive Entertainment and published by Sierra Entertainment for Microsoft Windows.  The game was released in September 2007, receiving generally favorable reviews and several awards.  The game is considered by some to be the spiritual successor of "Ground Control", another game by Massive Entertainment, and is generally conceived by its designers to be a real-time tactical game, despite being marketed as a RTS game.

Spiritual successor: A spiritual successor, sometimes called a spiritual sequel, is a successor to a work of fiction which does not build upon the storyline established by a previous work as do most traditional prequels or sequels, yet features many of the same elements, themes, and styles as its source material, thereby resulting in it being related or similar "in spirit" to its predecessor.  The term is frequently used within the video game industry but is also applied to other forms of publicized works and designed objects.

Landstalker: Landstalker: The Treasures of King Nole (ランドストーカー 皇帝の財宝 , Landstalker: Kōtei no Zaihō ) is an action-adventure role-playing video game that was developed by Climax Entertainment originally released for the Mega Drive/Genesis in 1992 in Japan and 1993 elsewhere.  A follow up game called "" was released in Japan for the SNES in 1995.  The Sega Saturn game "Dark Savior" (produced by the same company) is considered its spiritual successor.  The main characters from Landstalker, Nigel (Ryle in Japan and France, Niels in Germany) and Friday, reappear in the Dreamcast game "Time Stalkers".

Bodycount (video game): Bodycount is a first-person shooter video game for the PlayStation 3 and Xbox 360 video game consoles.  It was developed by Guildford Studio and published by Codemasters.  It is considered a spiritual successor to the 2006 video game "Black", which was developed by the same team.

Road Redemption: Road Redemption is an upcoming vehicular combat racing video game being developed by Pixel Dash Studios and EQ Games as a spiritual successor to the "Road Rash" series of vehicular combat racing video games.  An in-progress version is available through Steam Early Access, with final release planned for Microsoft Windows, OS X, and Linux on October 4th, 2017.  Console versions of Road Redemption are planned for 2018.

P.T. (video game): P.T. (short for "playable teaser") is a first-person psychological horror video game developed by Kojima Productions, under the pseudonym "7780s Studio", and published by Konami.  The game was directed and designed by Hideo Kojima, in collaboration with film director Guillermo Del Toro.

NightCry: NightCry is a graphic adventure, survival horror video game developed by Nude Maker and published by Playism Games for Microsoft Windows.  Ports for Android, iOS, and PlayStation Vita were announced but never released.  "NightCry" is directed and written by "Clock Tower" series creator Hifumi Kono, and is considered a spiritual successor to the series.

Allison Road (video game): Allison Road is an upcoming first-person survival horror video game for Linux, Microsoft Windows, OS X by Lilith Ltd and formerly to be published by Team17.  It was considered to be a spiritual successor to "P.T.", the playable teaser for the cancelled video game "Silent Hills".  Before being funded by Team17, the game's development was fan-based.  On 4 June 2016, the "Allison Road" Twitter account announced the game's cancellation.  On August 22, 2016 an announcement was made on the Twitter account indicating that work on the game had resumed.

Visage (video game): Visage is an independent survival horror video game in development by SadSquare Studio.  Similar to "Allison Road", the game is a spiritual successor to "P.T".  The game ran Kickstarter and Steam Greenlight campaigns.

Haunting Ground: Haunting Ground, known in Japan as Demento, is a survival horror video game developed and published by Capcom for the PlayStation 2 in 2005.  The story follows Fiona Belli, a young woman who wakes up in the dungeon of a castle after being involved in a car accident.  She quickly befriends a White Shepherd, Hewie, and begins to explore the castle with his aid to seek a means of escape and unravel the mysteries of it and its inhabitants.  The game shares many similarities with Capcom's earlier survival horror title "Clock Tower 3" (2002), and has been described as a spiritual successor to the "Clock Tower" series.

Supporting paragraphs: Allison Road (video game) P.T. (video game)
Answer: Hideo Kojima