If you liked this
Games like Single Player: Horror
If you finished Single Player: Horror, the closest matches are Star Citizen, Hollow Knight: Silksong, Clair Obscur: Expedition 33, Replaced and Hytale. All 36 share its indie genre and are ranked by how closely their themes and modes overlap.
Star Citizen
90
Hollow Knight: Silksong
87
Clair Obscur: Expedition 33
95
Replaced
80
Hytale
85
Dispatch
90
Valheim
93
Hades II
87
Cairn
84
Mouse: P.I. For Hire
91
Mina the Hollower
74
No Man's Sky
74
Mixtape
91
Blue Prince
91
Mewgenics
90
Big Walk
70
Palworld
84
Sword of the Sea
79
Routine
86
Ninja Gaiden: Ragebound
90
The Midnight Walk
90
Absolum
84
Denshattack!
82
Meccha Chameleon
93
Neva
93
Rhythm Doctor
84
Marvel Cosmic Invasion
83
Rematch
86
Peak
90
Silver Pines
88
Esoteric Ebb
82
Darwin's Paradox!
88
Well Dweller
85
Mio: Memories in Orbit
89
Fields of Mistria
91