Games like X-17
Games like X-17 include Cyberpunk 2077, Black Mesa, Half-Life 2, BioShock Infinite, and METRO Last Light Redux. We matched them by the tags players give X-17 on Steam (Action, Indie, Early Access, Psychological Horror, and Memes): closest matches first, and among equally close ones the better-known games.

Cyberpunk 2077
Shared: Nudity · FPS · Story Rich

Black Mesa
Shared: Action · FPS · First-Person

Half-Life 2
Shared: Action · FPS · Story Rich

BioShock Infinite
Shared: Action · FPS · First-Person

METRO Last Light Redux
Shared: Action · FPS · Story Rich

MiSide
Shared: Psychological Horror · Story Rich · First-Person

Half-Life: Alyx
Shared: FPS · Action · Story Rich

SUPERHOT
Shared: Action · Indie · FPS

RoboCop: Rogue City
Shared: Action · FPS · First-Person

Bright Memory: Infinite
Shared: Action · Indie · FPS

Wolfenstein II: The New Colossus
Shared: Action · FPS · First-Person

KovaaK's
Shared: Action · Indie · FPS

BioShock™
Shared: Action · FPS · Story Rich

METRO 2033 Redux
Shared: Action · FPS · Story Rich

Metro Exodus
Shared: Action · FPS · Story Rich

Resident Evil Village
Shared: Action · First-Person · Story Rich

Bright Memory
Shared: Action · FPS · First-Person

Ready or Not
Shared: FPS · Action · Psychological Horror

In Sound Mind
Shared: Psychological Horror · Action · Indie

Outlast
Shared: Psychological Horror · First-Person · Action

ParanormalHK
Shared: Psychological Horror · Nudity · Dating Sim

BioShock™ Remastered
Shared: Action · FPS · Story Rich

BioShock™ 2 Remastered
Shared: Action · FPS · Story Rich

Far Cry 3
Shared: Action · FPS · First-Person