Games like Castle Defense Battles
Games like Castle Defense Battles include Kingdom Rush - Tower Defense, Kingdom Rush Origins - Tower Defense, Kingdom Rush Frontiers - Tower Defense, Kingdom Rush Vengeance - Tower Defense, and Bloons TD 6. We matched them by the tags players give Castle Defense Battles on Steam (Strategy, Casual, Tower Defense, Singleplayer, and Difficult): closest matches first, and among equally close ones the better-known games.

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

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

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

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

Bloons TD 6
Shared: Strategy · Tower Defense · Singleplayer

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

GemCraft - Chasing Shadows
Shared: Strategy · Tower Defense · Singleplayer

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

Rock 'N' Roll Defense
Shared: Strategy · Tower Defense · Casual

Bloons TD 5
Shared: Strategy · Tower Defense · Casual

GemCraft - Frostborn Wrath
Shared: Tower Defense · Strategy · Difficult

Plague Inc: Evolved
Shared: Strategy · Singleplayer · Casual

Tangy TD
Shared: Strategy · Tower Defense · Singleplayer

Mount & Blade II: Bannerlord
Shared: Strategy · Medieval · Singleplayer

Game Dev Tycoon
Shared: Strategy · Casual · Singleplayer

Kingdom Rush 6: Genesis TD
Shared: Strategy · Tower Defense · 2D

A Dance of Fire and Ice
Shared: Difficult · Singleplayer · 2D

Idle Champions of the Forgotten Realms
Shared: Strategy · Singleplayer · Casual

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

The Escapists
Shared: Strategy · Singleplayer · 2D

Age of Defense
Shared: Strategy · Tower Defense · Singleplayer

Mount & Blade: Warband
Shared: Strategy · Medieval · Action

Hollow Knight
Shared: Difficult · 2D · Singleplayer

Total War: WARHAMMER II
Shared: Strategy · Singleplayer · Action