If you liked this
Games like Red Siren: Space Defense
If you finished Red Siren: Space Defense, the closest matches are No Man's Sky, Metal Eden, Cuphead, UFO 50 and Mullet Madjack. All 36 share its adventure genre and are ranked by how closely their themes and modes overlap.
74
No Man's Sky
98
Metal Eden
87
Cuphead
89
UFO 50
90
Mullet Madjack
94
Grand Theft Auto: Vice City
60
Starship Troopers: Ultimate Bug War!
80
Neon Inferno
80
Jetrunner
87
Cuphead: The Delicious Last Course
95
The Binding of Isaac: Rebirth
79
Turnip Boy Robs a Bank
88
Valfaris: Mecha Therion
96
Shadow Warrior 3: Definitive Edition
83
Atari 50: The Anniversary Celebration
82
Enter the Gungeon
Tower Unite
65
Wall World
75
Call of Juarez: Gunslinger
83
Ratchet & Clank Future: A Crack in Time
90
Ghosts 'n Goblins
65
Rogue Flight
75
Chorus
81
Noita
69
Destiny 2: Lightfall
60
Yars Rising
73
My Friend Pedro
84
Nuclear Throne
80
Metal Slug X
75
Taito Milestones 2
79
Ultimate Chicken Horse
83
Lovers in a Dangerous Spacetime
78
Downwell
74
Pixel Ripped 1978
72
Irem Collection: Volume 1
80