If you liked this
Games like Royal Defense: Invisible Threat
If you finished Royal Defense: Invisible Threat, the closest matches are UFO 50, ChromaGun 2: Dye Hard, Children of the Sun, Door Kickers and Natural Selection 2. All 36 share its indie genre and are ranked by how closely their themes and modes overlap.
89
UFO 50
82
ChromaGun 2: Dye Hard
80
Children of the Sun
85
Door Kickers
85
Natural Selection 2
93
The Talos Principle: Deluxe Edition
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Orcs Must Die! 3
84
Mighty Switch Force! Collection
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Dyad
Shotgun King: the Final Checkmate
73
Neonwall
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Touhou Spell Bubble
70
Transcripted
70
Cat Girl Without Salad: Amuse-Bouche
70
Dystoria
60
Real Heroes: Firefighter
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Never Stop Sneakin'
Damashi Game
50
Fort Defense
Psycho-Kin
Fortix
50
Royal Defense
Link
StacKit
Indie Heroes Collection 4
Zombie Defense
Snowpult
Sim Solver
Cubemen 2
Star Salvager
Luxor Evolved
Hand In Hand
Transmogrify
Day D: Tower Rush
Dark Traveller
