Games like Alien Defense
Games like Alien Defense include The Riftbreaker, Orcs Must Die! 2, Bastion, Defense Grid: The Awakening, and Black Myth: Wukong. We matched them by the tags players give Alien Defense on Steam (RPG, Tower Defense, Wargame, 2.5D, and Aliens): closest matches first, and among equally close ones the better-known games.
The Riftbreaker
Shared: Tower Defense · Base Building · RPG
Orcs Must Die! 2
Shared: Tower Defense · RPG · Action
Bastion
Shared: RPG · Indie · Singleplayer
Defense Grid: The Awakening
Shared: Tower Defense · Aliens · Singleplayer
Black Myth: Wukong
Shared: RPG · Action · Singleplayer
Deathtrap
Shared: RPG · Tower Defense · Action
鬼谷八荒 Tale of Immortal
Shared: RPG · Singleplayer · Action
Wolcen: Lords of Mayhem
Shared: RPG · Singleplayer · Action
Kingdom Two Crowns
Shared: Tower Defense · Base Building · Singleplayer
Night of the Dead
Shared: Tower Defense · Singleplayer · Base Building
Hades
Shared: Indie · Singleplayer · RPG
Taur
Shared: Tower Defense · Base Building · Action
Mount & Blade II: Bannerlord
Shared: RPG · Singleplayer · Action
Bloodstained: Ritual of the Night
Shared: RPG · 2.5D · Action
ANNO: Mutationem
Shared: RPG · 2.5D · Indie
Middle-earth: Shadow of War
Shared: RPG · Singleplayer · Action
Fallout: New Vegas
Shared: RPG · Singleplayer · Action
Kingdom Come: Deliverance II
Shared: RPG · Singleplayer · Action
Warpips
Shared: Tower Defense · Singleplayer · 2.5D
Infested Planet
Shared: Tower Defense · Action · Singleplayer
Wandering Sword
Shared: RPG · 2.5D · Singleplayer
Sang-Froid - Tales of Werewolves
Shared: Tower Defense · RPG · Indie
X-Morph: Defense
Shared: Tower Defense · Indie · Action
Dust: An Elysian Tail
Shared: RPG · Action · Indie