Games like Stick War: Castle Defence
Games like Stick War: Castle Defence include Orcs Must Die! 2, Deathtrap, Bastion, Hades, and Dust: An Elysian Tail. We matched them by the tags players give Stick War: Castle Defence on Steam (Action, RPG, Indie, and Tower Defense): closest matches first, and among equally close ones the better-known games.

Orcs Must Die! 2
Shared: Action · Tower Defense · Indie

Deathtrap
Shared: RPG · Action · Tower Defense

Bastion
Shared: Action · Indie · RPG

Hades
Shared: Indie · Action · RPG

Dust: An Elysian Tail
Shared: Action · Indie · RPG

Sang-Froid - Tales of Werewolves
Shared: Action · Tower Defense · Indie

Hades II
Shared: Action · RPG · Indie

The Wind Road
Shared: Action · RPG · Indie

Black Myth: Wukong
Shared: Action · RPG

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

Dungeon Munchies
Shared: Action · Indie · RPG

Pyre
Shared: RPG · Indie · Action

UnEpic
Shared: RPG · Indie · Action

The Incredible Adventures of Van Helsing
Shared: RPG · Action · Indie

Wolcen: Lords of Mayhem
Shared: RPG · Action · Indie

ICEY
Shared: Action · Indie · RPG

Mount & Blade II: Bannerlord
Shared: RPG · Action · Indie

Last Oasis
Shared: RPG · Action · Indie

Warhammer 40,000: Inquisitor - Martyr
Shared: RPG · Action · Indie

The Ascent
Shared: RPG · Action · Indie

Bardbarian
Shared: Indie · Tower Defense · RPG

E.Y.E: Divine Cybermancy
Shared: RPG · Action · Indie

Juicy Realm
Shared: Action · Indie · RPG

Indivisible
Shared: RPG · Action · Indie