Simplify the following text for a Grade 4 native English-speaking person.
Original: Subsequent titles have been created by other developers : Silent Hill : Origins and the reimagined Silent Hill : Shattered Memories by Climax Group , Silent Hill Homecoming by Double Helix Games , and Silent Hill : Downpour is currently under development by Czech Republic-based studios Vatra Games .
Simplified: The letter ask him to silent hill where had once belonged to both their Special places . At this time of silent hill has been surrounded by fog .