Games like Defying Fate
Games like Defying Fate include Deep Rock Galactic: Survivor, Nova Drift, Glyphica: Typing Survival, HELLDIVERS™ 2, and SNKRX. We matched them by the tags players give Defying Fate on Steam (Arena Shooter, Top-Down Shooter, Bullet Hell, Space, and Physics): closest matches first, and among equally close ones the better-known games.

Deep Rock Galactic: Survivor
Shared: Bullet Hell · Top-Down Shooter · Arena Shooter

Nova Drift
Shared: Bullet Hell · Arena Shooter · Arcade

Glyphica: Typing Survival
Shared: Arena Shooter · Bullet Hell · Top-Down Shooter

HELLDIVERS™ 2
Shared: PvE · Shooter · Space

SNKRX
Shared: Arena Shooter · Top-Down Shooter · Shooter

Chippy
Shared: Arena Shooter · Bullet Hell · Top-Down Shooter

Brotato
Shared: Bullet Hell · Arena Shooter · Top-Down Shooter

Starship Troopers: Extermination
Shared: PvE · Aliens · Action

DoDonPachi Resurrection
Shared: Top-Down Shooter · Bullet Hell · Shooter

VOID/BREAKER
Shared: Bullet Hell · Arena Shooter · Shooter

Bit Blaster XL
Shared: Bullet Hell · Shooter · Arcade

Geometry Arena 2
Shared: Arena Shooter · Top-Down Shooter · Bullet Hell

Deployment
Shared: Arena Shooter · Top-Down Shooter · Shooter

Kerbal Space Program
Shared: Space · Physics · Simulation

BALL x PIT
Shared: Bullet Hell · Top-Down Shooter · Arcade

Aliens: Fireteam Elite
Shared: Aliens · Shooter · Space

Pathogenic
Shared: Top-Down Shooter · Bullet Hell · Shooter

X Invader
Shared: Arena Shooter · Bullet Hell · Top-Down Shooter

Space Engineers
Shared: Space · Physics · Simulation

Aliens: Fireteam Elite 2
Shared: Space · Shooter · Aliens

Star Saviors
Shared: Bullet Hell · Space · Arcade

State of Anarchy: Master of Mayhem
Shared: Top-Down Shooter · Bullet Hell · Arena Shooter

Jump Space
Shared: Space · PvE · Shooter

Titan Attacks!
Shared: Arena Shooter · Bullet Hell · Top-Down Shooter