Games like Synthesis of Corruption
Games like Synthesis of Corruption include SOMA, Lethal Company, Resident Evil Village, Resident Evil 7 Biohazard, and Inside the Backrooms. We matched them by the tags players give Synthesis of Corruption on Steam (Horror, Survival Horror, First-Person, Sci-fi, and FPS): closest matches first, and among equally close ones the better-known games.

SOMA
Shared: Horror · Sci-fi · Survival Horror

Lethal Company
Shared: Horror · First-Person · Survival Horror

Resident Evil Village
Shared: Horror · Survival Horror · First-Person

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · First-Person

Inside the Backrooms
Shared: Horror · Survival Horror · Puzzle

Half-Life 2
Shared: FPS · Sci-fi · First-Person

Resident Evil Requiem
Shared: Survival Horror · Horror · First-Person

METRO 2033 Redux
Shared: Horror · FPS · First-Person

Black Mesa
Shared: FPS · Sci-fi · First-Person

Half-Life
Shared: FPS · Sci-fi · 1990's

Prey
Shared: Sci-fi · Horror · First-Person

Half-Life: Alyx
Shared: Horror · FPS · First-Person

METRO Last Light Redux
Shared: FPS · Horror · First-Person

Metro Exodus
Shared: FPS · Horror · First-Person

Alien: Isolation
Shared: Horror · Survival Horror · Sci-fi

Dying Light
Shared: Survival Horror · Horror · First-Person

Five Nights at Freddy's: Security Breach
Shared: Horror · Survival Horror · First-Person

Outlast
Shared: Horror · Survival Horror · First-Person

Species: Unknown
Shared: Horror · First-Person · Survival Horror

BioShock™ Remastered
Shared: Horror · FPS · First-Person

Amnesia: The Dark Descent
Shared: Horror · Survival Horror · First-Person

BioShock™
Shared: FPS · Horror · First-Person

Resident Evil 2
Shared: Survival Horror · Horror · Puzzle

Metro 2033
Shared: Horror · FPS · Atmospheric