Games like Hope is in 23
Games like Hope is in 23 include Interstellar Marines, KovaaK's, My Friend Pedro, Notes of Soul, and Ready or Not. We matched them by the tags players give Hope is in 23 on Steam (Action, Indie, Early Access, Horror, and Shooter): closest matches first, and among equally close ones the better-known games.

Interstellar Marines
Shared: Action · Indie · Shooter

KovaaK's
Shared: Action · Indie · Shooter

My Friend Pedro
Shared: Action · Indie · Shooter

Notes of Soul
Shared: Action · Horror · Indie

Ready or Not
Shared: Shooter · Horror · Action

Bean Battles
Shared: Action · Indie · Shooter

Trepang2
Shared: Shooter · Horror · Action

Phasmophobia
Shared: Horror · Supernatural · Early Access

Blood and Bacon
Shared: Action · Shooter · Horror

PUBG: BATTLEGROUNDS
Shared: Shooter · Action · Early Access

Bodycam
Shared: Shooter · Horror · Indie

Left 4 Dead 2
Shared: Action · Shooter · Horror

Devil Daggers
Shared: Indie · Action · Horror

WARDOGS
Shared: Action · Shooter · Indie

Bright Memory: Infinite
Shared: Action · Indie · Shooter

Ravenfield
Shared: Action · Shooter · Early Access

Sub Rosa
Shared: Action · Early Access · Indie

171
Shared: Action · Indie · Shooter

Dead Bits
Shared: Action · Indie · Shooter

Red Lake
Shared: Action · Indie · Horror

ShellShock Live
Shared: Action · Shooter · Early Access

DOOM
Shared: Action · Shooter · Horror

SUPERHOT
Shared: Action · Indie · Shooter

Dead Space™ 2
Shared: Horror · Action · Shooter