Games like Xi
Games like Xi include Firework, Tales of the Black Forest, OMORI, Angels of Death, and Sally Face - Episode One. We matched them by the tags players give Xi on Steam (RPG, Puzzle, 2D Platformer, 2D, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Firework
Shared: Puzzle · 2D · Horror

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

OMORI
Shared: RPG · Psychological Horror · Pixel Graphics

Angels of Death
Shared: Puzzle · RPG · Pixel Graphics

Sally Face - Episode One
Shared: Puzzle · Psychological Horror · Horror

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

Impostor Factory
Shared: RPG · Pixel Graphics · 2D

The Rewinder
Shared: Puzzle · Pixel Graphics · Mystery

Sanfu
Shared: RPG · Puzzle · 2D

Unheard - Voices of Crime
Shared: Puzzle · Mystery · RPG

DISTRAINT: Deluxe Edition
Shared: Psychological Horror · 2D · Pixel Graphics

Ib
Shared: Pixel Graphics · 2D · Horror

Poppy Playtime
Shared: Puzzle · Horror · Psychological Horror

Paper Bride
Shared: Puzzle · 2D · Horror

OneShot
Shared: Pixel Graphics · Puzzle · 2D

Finding Paradise
Shared: RPG · Pixel Graphics · 2D

DELTARUNE
Shared: RPG · Pixel Graphics · 2D

Cube Escape Collection
Shared: Puzzle · Psychological Horror · Horror

Heartbound
Shared: RPG · Pixel Graphics · 2D

Rusty Lake Paradise
Shared: Puzzle · Psychological Horror · Horror

Mad Father
Shared: Psychological Horror · Horror · 2D

Cat in the Box
Shared: Horror · Pixel Graphics · 2D

CrossCode
Shared: RPG · Puzzle · Pixel Graphics

Cyber Manhunt
Shared: RPG · Puzzle · Mystery