Games like Perfect Diamond
Games like Perfect Diamond include UFO 50, Papers, Please, Baba Is You, Zuma Deluxe, and Peggle Deluxe. We matched them by the tags players give Perfect Diamond on Steam (Puzzle, Retro, Strategy, Singleplayer, and Local Multiplayer): closest matches first, and among equally close ones the better-known games.

UFO 50
Shared: Retro · Pixel Graphics · Strategy

Papers, Please
Shared: Singleplayer · Puzzle · Pixel Graphics

Baba Is You
Shared: Puzzle · Singleplayer · Pixel Graphics

Zuma Deluxe
Shared: Puzzle · Strategy · Arcade

Peggle Deluxe
Shared: Puzzle · Singleplayer · Casual

Vampire Survivors
Shared: Pixel Graphics · Singleplayer · Indie

Banana
Shared: Singleplayer · Casual · Strategy

Plants vs. Zombies GOTY Edition
Shared: Strategy · Singleplayer · Casual

Zup! S
Shared: Puzzle · Singleplayer · Casual

Bejeweled® 3
Shared: Puzzle · Singleplayer · Strategy

The Escapists
Shared: Strategy · Pixel Graphics · Singleplayer

Timberman
Shared: Pixel Graphics · Singleplayer · Casual

Hexcells
Shared: Puzzle · Singleplayer · Strategy

PAC-MAN™ Championship Edition DX+
Shared: Retro · Arcade · Score Attack

Mini Metro
Shared: Puzzle · Strategy · Singleplayer

Gunpoint
Shared: Puzzle · Singleplayer · Pixel Graphics

Into the Breach
Shared: Strategy · Pixel Graphics · Puzzle

Death Coming/死神来了
Shared: Puzzle · Strategy · Pixel Graphics

PAC-MAN 256
Shared: Retro · Singleplayer · Arcade

Unpacking
Shared: Puzzle · Pixel Graphics · Singleplayer

Nubby's Number Factory
Shared: Strategy · Singleplayer · Arcade

Balatro
Shared: Singleplayer · Strategy · Pixel Graphics

FEZ
Shared: Puzzle · Pixel Graphics · Singleplayer

There Is No Game: Wrong Dimension
Shared: Puzzle · Pixel Graphics · Singleplayer