Games like 一ノ一
Games like 一ノ一 include Five Nights at Freddy's: Into the Pit, Stray, Dead Cells, Terraria, and CARRION. We matched them by the tags players give 一ノ一 on Steam (Adventure, 2D, Pixel Graphics, Sci-fi, and Robots): closest matches first, and among equally close ones the better-known games.

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

Stray
Shared: Adventure · Singleplayer · Robots

Dead Cells
Shared: Adventure · Pixel Graphics · 2D

Terraria
Shared: 2D · Adventure · Pixel Graphics

CARRION
Shared: Pixel Graphics · 2D · Adventure

SANABI
Shared: Pixel Graphics · Adventure · 2D

DAVE THE DIVER
Shared: Pixel Graphics · Adventure · Singleplayer

Half-Life 2
Shared: Sci-fi · Adventure · Singleplayer

Primordia
Shared: Adventure · Sci-fi · Robots

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

The Rewinder
Shared: Adventure · Pixel Graphics · 2D

Finding Paradise
Shared: Adventure · Pixel Graphics · 2D

Look Outside
Shared: Pixel Graphics · Adventure · 2D

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

Tales of the Black Forest
Shared: Pixel Graphics · Adventure · Horror

Atomic Heart
Shared: Adventure · Singleplayer · Sci-fi

The Witch's House MV
Shared: 2D · Pixel Graphics · Adventure

Urban Myth Dissolution Center
Shared: Adventure · Pixel Graphics · 2D

Out There Somewhere
Shared: Pixel Graphics · Adventure · 2D

Eastward
Shared: Adventure · Pixel Graphics · Singleplayer

Detroit: Become Human
Shared: Singleplayer · Robots · Adventure

Impostor Factory
Shared: Adventure · Pixel Graphics · 2D

The Final Station
Shared: Pixel Graphics · 2D · Adventure

Reventure
Shared: Adventure · Pixel Graphics · 2D