Games like Pentabit Copy-X
Games like Pentabit Copy-X include Vampire Survivors, Slots & Daggers, Balatro, Skul: The Hero Slayer, and The Escapists. We matched them by the tags players give Pentabit Copy-X on Steam (Puzzle, Strategy, Roguelite, Action, and 2D): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Roguelite · 2D · Pixel Graphics

Slots & Daggers
Shared: Strategy · Casual · Roguelite

Balatro
Shared: Strategy · Roguelite · Singleplayer

Skul: The Hero Slayer
Shared: Action · Roguelite · 2D

The Escapists
Shared: Strategy · 2D · Action

UFO 50
Shared: Action · Strategy · 2D

Gunpoint
Shared: Puzzle · 2D · Strategy

Into the Breach
Shared: Strategy · Puzzle · Roguelite

Zup! S
Shared: Puzzle · Casual · 2D

Megabonk
Shared: Roguelite · Action · Roguelike

Papers, Please
Shared: Puzzle · Indie · Singleplayer

Plants vs. Zombies GOTY Edition
Shared: Strategy · Casual · 2D

You Must Build A Boat
Shared: Strategy · Puzzle · Casual

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

10,000,000
Shared: Puzzle · Casual · Indie

Mini Metro
Shared: Puzzle · Strategy · Casual

Baba Is You
Shared: Puzzle · Singleplayer · 2D

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

Zombie Night Terror
Shared: Strategy · Puzzle · Action

DemonCrawl
Shared: Strategy · Puzzle · Roguelite

Dungreed
Shared: Roguelite · Action · 2D

Zuma Deluxe
Shared: Puzzle · Strategy · 2D

The Legend of Bum-Bo
Shared: Roguelite · Strategy · Puzzle

FTL: Faster Than Light
Shared: Strategy · Singleplayer · Roguelike