Games like Alien Frontier
Games like Alien Frontier include Risk of Rain 2, Megabonk, Enter the Gungeon, Vampire Survivors, and Returnal™. We matched them by the tags players give Alien Frontier on Steam (Action Roguelike, Bullet Hell, Third-Person Shooter, Roguelite, and Difficult): closest matches first, and among equally close ones the better-known games.
Risk of Rain 2
Shared: Action Roguelike · Third-Person Shooter · Roguelite
Megabonk
Shared: Action Roguelike · Roguelite · Bullet Hell
Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Difficult
Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite
Returnal™
Shared: Bullet Hell · Third-Person Shooter · Action Roguelike
Nuclear Throne
Shared: Action Roguelike · Bullet Hell · Roguelike
Crab Champions
Shared: Action Roguelike · Third-Person Shooter · Roguelike
Brotato
Shared: Bullet Hell · Action Roguelike · Roguelike
Hades
Shared: Action Roguelike · Roguelite · Roguelike
Tiny Rogues
Shared: Action Roguelike · Bullet Hell · Difficult
Tower of Babel: Survivors of Chaos
Shared: Action Roguelike · Bullet Hell · Roguelite
Soulstone Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite
Halls of Torment
Shared: Action Roguelike · Bullet Hell · Roguelite
Death Must Die
Shared: Action Roguelike · Bullet Hell · Roguelite
Just Cause™ 3
Shared: Third-Person Shooter · Open World · Shooter
The Binding of Isaac: Rebirth
Shared: Action Roguelike · Roguelike · Difficult
BALL x PIT
Shared: Bullet Hell · Roguelite · Action Roguelike
Roboquest
Shared: Action Roguelike · Roguelite · Shooter
The Binding of Isaac
Shared: Action Roguelike · Roguelike · Difficult
Star of Providence
Shared: Bullet Hell · Action Roguelike · Roguelite
Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite
Skul: The Hero Slayer
Shared: Action Roguelike · Roguelite · Roguelike
Grand Theft Auto V Legacy
Shared: Open World · Action · Shooter
Magicraft
Shared: Action Roguelike · Bullet Hell · Roguelite