Games like Lockdown: Stand Alone
Games like Lockdown: Stand Alone include METRO 2033 Redux, METRO Last Light Redux, Metro Exodus, Half-Life: Alyx, and Left 4 Dead 2. We matched them by the tags players give Lockdown: Stand Alone on Steam (Horror, FPS, Survival Horror, Shooter, and Post-apocalyptic): closest matches first, and among equally close ones the better-known games.

METRO 2033 Redux
Shared: FPS · Horror · Post-apocalyptic

METRO Last Light Redux
Shared: FPS · Horror · Post-apocalyptic

Metro Exodus
Shared: FPS · Post-apocalyptic · Horror

Half-Life: Alyx
Shared: FPS · Horror · VR

Left 4 Dead 2
Shared: FPS · Shooter · Horror

Into the Radius VR
Shared: FPS · VR · Horror

Resident Evil Village
Shared: Horror · Survival Horror · Action

Resident Evil Requiem
Shared: Horror · Survival Horror · FPS

Ready or Not
Shared: FPS · Shooter · Horror

Resident Evil 7 Biohazard
Shared: Horror · Survival Horror · VR

Resident Evil 4
Shared: Horror · Survival Horror · Action

Bodycam
Shared: FPS · Horror · Shooter

The Walking Dead: Saints & Sinners
Shared: VR · Horror · Survival Horror

BONEWORKS
Shared: VR · Shooter · Action

Choo-Choo Charles
Shared: Horror · Survival Horror · Shooter

The Last of Us™ Part I
Shared: Horror · Post-apocalyptic · Shooter

Half-Life 2
Shared: FPS · Shooter · Action

Resident Evil 4 (2005)
Shared: Survival Horror · Horror · Action

DayZ
Shared: Shooter · Post-apocalyptic · FPS

Dying Light
Shared: Horror · Survival Horror · FPS

Atomic Heart
Shared: FPS · Horror · Adventure

Left 4 Dead
Shared: FPS · Horror · Shooter

Black Mesa
Shared: FPS · Shooter · Action

GTFO
Shared: Horror · FPS · Shooter