Games like 1BIT CASTLE
Games like 1BIT CASTLE include UFO 50, Papers, Please, The Binding of Isaac: Rebirth, Kingdom Two Crowns, and Firework. We matched them by the tags players give 1BIT CASTLE on Steam (Indie, Tower Defense, Retro, Minimalist, and 2D): closest matches first, and among equally close ones the better-known games.

UFO 50
Shared: Indie · Retro · 2D

Papers, Please
Shared: Indie · Retro · 2D

The Binding of Isaac: Rebirth
Shared: Indie · Replay Value · 2D

Kingdom Two Crowns
Shared: Tower Defense · Minimalist · Indie

Firework
Shared: Indie · 2D · Atmospheric

Let Them Come
Shared: Indie · Tower Defense · 2D

LIMBO
Shared: Indie · 2D · Atmospheric

Dome Keeper
Shared: Tower Defense · Action · Indie

Hotline Miami
Shared: Indie · Action · Retro

Streets of Rage 4
Shared: Indie · 2D · Action

Shovel Knight: Treasure Trove
Shared: Retro · Indie · 2D

Rock 'N' Roll Defense
Shared: Tower Defense · Indie · Action

Broforce
Shared: 2D · Indie · Action

Hollow Knight: Silksong
Shared: Indie · 2D · Atmospheric

Hollow Knight
Shared: Indie · 2D · Atmospheric

BlazBlue Entropy Effect
Shared: 2D · Action · Replay Value

Mark of the Ninja
Shared: Indie · 2D · Action

Neon Beats
Shared: Indie · 2D · Free to Play

Axiom Verge
Shared: Indie · 2D · Retro

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

The Messenger
Shared: Retro · Indie · 2D

SANABI
Shared: Indie · Action · 2D

Dungeon Warfare
Shared: Tower Defense · Indie · 2D

GemCraft - Chasing Shadows
Shared: Tower Defense · Indie · 2D