Games like The Infernal Abyss
Games like The Infernal Abyss include SANABI, CARRION, Five Nights at Freddy's: Into the Pit, Hotline Miami, and Katana ZERO. We matched them by the tags players give The Infernal Abyss on Steam (Adventure, Action, 2D Platformer, Idler, and 2D): closest matches first, and among equally close ones the better-known games.

SANABI
Shared: Action · Adventure · 2D Platformer

CARRION
Shared: Action · Pixel Graphics · Adventure

Five Nights at Freddy's: Into the Pit
Shared: Adventure · 2D · Pixel Graphics

Hotline Miami
Shared: Action · Top-Down · Pixel Graphics

Katana ZERO
Shared: Action · Pixel Graphics · 2D Platformer

Impostor Factory
Shared: Adventure · 2D · Pixel Graphics

OMORI
Shared: Psychological Horror · Pixel Graphics · Indie

DISTRAINT: Deluxe Edition
Shared: Adventure · 2D · Pixel Graphics

Jump King
Shared: Adventure · Psychological Horror · Action

Celeste
Shared: 2D Platformer · Pixel Graphics · Adventure

Blasphemous
Shared: Pixel Graphics · 2D · Action

Terraria
Shared: Adventure · 2D · Pixel Graphics

BOKURA
Shared: Adventure · Action · Pixel Graphics

Skul: The Hero Slayer
Shared: Action · 2D · Pixel Graphics

House
Shared: Adventure · Action · Pixel Graphics

Hyper Light Drifter
Shared: Adventure · Pixel Graphics · Action

Hotline Miami 2: Wrong Number
Shared: Action · Pixel Graphics · Top-Down

Finding Paradise
Shared: Adventure · 2D · Pixel Graphics

Titan Souls
Shared: Adventure · Action · Pixel Graphics

Mina the Hollower
Shared: 2D Platformer · Top-Down · Pixel Graphics

Pizza Tower
Shared: 2D Platformer · Action · Indie

Dead Cells
Shared: Adventure · 2D · Pixel Graphics

Exit the Gungeon
Shared: Action · Adventure · 2D

Sonic Origins
Shared: Action · Adventure · 2D Platformer