Games like Scary defense
Games like Scary defense include Orcs Must Die! 3, Orcs Must Die! 2, Orcs Must Die!, Grand Theft Auto V Legacy, and Buckshot Roulette. We matched them by the tags players give Scary defense on Steam (Action, Indie, Strategy, Tower Defense, and Colony Sim): closest matches first, and among equally close ones the better-known games.

Orcs Must Die! 3
Shared: Tower Defense · Strategy · Action

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

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

Grand Theft Auto V Legacy
Shared: Action · Third Person · Third-Person Shooter

Buckshot Roulette
Shared: Strategy · Indie · Horror

Caster
Shared: Action · Indie · Third-Person Shooter

Bloons TD 6
Shared: Strategy · Tower Defense · 3D

The Evil Within 2
Shared: Action · Psychological Horror · Horror

Watch_Dogs™
Shared: Action · Third-Person Shooter · Third Person

Batman™: Arkham Knight
Shared: Action · Third Person · Stealth

Grand Theft Auto IV: The Complete Edition
Shared: Action · Third-Person Shooter · Third Person

Hitman: Absolution
Shared: Action · Third-Person Shooter · Third Person

Thronefall
Shared: Strategy · Tower Defense · Action

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

Resident Evil 4
Shared: Action · Third-Person Shooter · Horror

Dead Space
Shared: Third-Person Shooter · Horror · Psychological Horror

Just Cause™ 3
Shared: Action · Third-Person Shooter · Open World

Alan Wake
Shared: Action · Horror · Third Person

METAL GEAR SOLID V: THE PHANTOM PAIN
Shared: Action · Third Person · Stealth

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

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

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

Tomb Raider Game of the Year
Shared: Action · Third Person · Third-Person Shooter

Getting Over It with Bennett Foddy
Shared: Psychological Horror · Indie · Horror