Games like Castella
Games like Castella include Rogue Tower, Bloons TD 6, Kingdom Rush - Tower Defense, Kingdom Rush Origins - Tower Defense, and Plants vs. Zombies GOTY Edition. We matched them by the tags players give Castella on Steam (Strategy, Tower Defense, Casual, Roguelike, and Roguelite): closest matches first, and among equally close ones the better-known games.

Rogue Tower
Shared: Strategy · Tower Defense · Casual

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer

Kingdom Rush Origins - Tower Defense
Shared: Strategy · Tower Defense · Casual

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Casual

Kingdom Rush 5: Alliance TD
Shared: Strategy · Tower Defense · Singleplayer

Kingdom Rush Frontiers - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer

Thronefall
Shared: Strategy · Tower Defense · Medieval

Balatro
Shared: Roguelike · Strategy · Singleplayer

Wall World
Shared: Tower Defense · Roguelite · Strategy

Emberward
Shared: Tower Defense · Strategy · Roguelite

Cluckmech Oasis
Shared: Strategy · Tower Defense · Roguelike

Tower Dominion
Shared: Strategy · Tower Defense · Roguelike

Hexguardian
Shared: Tower Defense · Strategy · Roguelike

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Singleplayer

Orcs Must Die!
Shared: Tower Defense · Strategy · Fantasy

Kingdom Rush Vengeance - Tower Defense
Shared: Strategy · Tower Defense · Singleplayer

The King is Watching
Shared: Tower Defense · Roguelike · Strategy

RACCOIN: Coin Pusher Roguelike
Shared: Strategy · Roguelike · Casual

How Many Dudes? The Roguelike Autobattler
Shared: Strategy · Casual · Roguelike

Tangy TD
Shared: Strategy · Tower Defense · Roguelike

Slay the Spire
Shared: Roguelike · Strategy · Singleplayer

Bloons TD 5
Shared: Strategy · Tower Defense · Casual

Kingdom Rush 6: Genesis TD
Shared: Strategy · Tower Defense · Fantasy