Games like Hentai Castle
Games like Hentai Castle include Zuma Deluxe, Horripilant, Cookie Clicker, Nodebuster, and Shelldiver. We matched them by the tags players give Hentai Castle on Steam (Incremental, Dungeon Crawler, Match 3, Puzzle, and Visual Novel): closest matches first, and among equally close ones the better-known games.

Zuma Deluxe
Shared: Match 3 · Puzzle · Arcade

Horripilant
Shared: Incremental · Dungeon Crawler · Puzzle

Cookie Clicker
Shared: Incremental · Casual · Indie

Nodebuster
Shared: Incremental · Arcade · Casual

Shelldiver
Shared: Incremental · Arcade · Casual

Bejeweled® 3
Shared: Puzzle · Match 3 · Casual

Galvatein : Adventurers' Guild
Shared: Visual Novel · Puzzle · Medieval

A Game About Feeding A Black Hole
Shared: Incremental · Casual · 2D

Keep on Mining!
Shared: Incremental · Casual · Arcade

There Is No Game: Wrong Dimension
Shared: Puzzle · Funny · Indie

Peggle Deluxe
Shared: Puzzle · Arcade · Casual

Mirror 2: Project X
Shared: Match 3 · Visual Novel · Anime

inbento
Shared: Puzzle · Casual · 2D

To The Core
Shared: Incremental · Arcade · 2D

Firework
Shared: Puzzle · 2D · Visual Novel

Zup! S
Shared: Puzzle · 2D · Casual

Progressbar95
Shared: Puzzle · Arcade · Casual

Zup!
Shared: Puzzle · 2D · Casual

Click Mage
Shared: Incremental · Casual · Simulation

Oik
Shared: Incremental · Puzzle · 2D

Zuma's Revenge!
Shared: Puzzle · Match 3 · Casual

10,000,000
Shared: Match 3 · Puzzle · Casual

Shower With Your Dad Simulator 2015: Do You Still Shower With Your Dad
Shared: Arcade · 2D · Funny

Russian Life Simulator
Shared: Incremental · 2D · Simulation