Games like Mysis: The Return
Games like Mysis: The Return include Poppy Playtime, Resident Evil Requiem, Bendy and the Dark Revival, Atomic Heart, and The Forest. We matched them by the tags players give Mysis: The Return on Steam (Action, Casual, Adventure, Puzzle, and FPS): closest matches first, and among equally close ones the better-known games.

Poppy Playtime
Shared: Horror · Puzzle · Singleplayer

Resident Evil Requiem
Shared: Action · Horror · FPS

Bendy and the Dark Revival
Shared: Action · Horror · Adventure

Atomic Heart
Shared: Adventure · Action · FPS

The Forest
Shared: Adventure · Horror · Action

Resident Evil Village
Shared: Action · Horror · Singleplayer

Metro Exodus
Shared: FPS · Action · Singleplayer

Resident Evil 7 Biohazard
Shared: Horror · Singleplayer · Action

Five Nights at Freddy's: Security Breach
Shared: Horror · Singleplayer · Action

METRO 2033 Redux
Shared: FPS · Action · Horror

METRO Last Light Redux
Shared: Action · FPS · Horror

Outlast
Shared: Horror · First-Person · Singleplayer

Half-Life 2
Shared: Action · FPS · Singleplayer

VLADiK BRUTAL
Shared: Action · FPS · Adventure

Left 4 Dead 2
Shared: FPS · Action · Horror

The Hat Man: Shadow Ward
Shared: Adventure · Action · Horror

Bendy and the Ink Machine
Shared: Horror · Puzzle · Singleplayer

Escape the Backrooms
Shared: Horror · Adventure · First-Person

Dying Light
Shared: Horror · Action · Survival Horror

The Beast Inside
Shared: Adventure · Action · Horror

Resident Evil 4
Shared: Action · Horror · Singleplayer

SUPERHOT
Shared: Action · FPS · Singleplayer

Black Mesa
Shared: Action · FPS · Singleplayer

Far Cry 3
Shared: Action · Adventure · FPS