Games like Twinworld Survivor
Games like Twinworld Survivor include Vampire Survivors, Enter the Gungeon, 20 Minutes Till Dawn, Death Must Die, and Halls of Torment. We matched them by the tags players give Twinworld Survivor on Steam (Action Roguelike, Casual, Top-Down Shooter, Pixel Graphics, and Bullet Hell): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Enter the Gungeon
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Top-Down Shooter

Death Must Die
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Halls of Torment
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Nuclear Throne
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Blazing Beaks
Shared: Action Roguelike · Pixel Graphics · Top-Down Shooter

Megabonk
Shared: Action Roguelike · Bullet Hell · Pixel Graphics

Relic Hunters Zero: Remix
Shared: Action Roguelike · Top-Down Shooter · Action

Noobs Want to Live
Shared: Bullet Hell · Pixel Graphics · Action Roguelike

Hero Siege
Shared: Action Roguelike · Pixel Graphics · RPG

Rocket Rats
Shared: Action Roguelike · Casual · Pixel Graphics

BALL x PIT
Shared: Action Roguelike · Action · Bullet Hell

Skul: The Hero Slayer
Shared: Action Roguelike · Pixel Graphics · Action

Brotato
Shared: Action Roguelike · Bullet Hell · Singleplayer

Tiny Rogues
Shared: Action Roguelike · Top-Down Shooter · Bullet Hell

Juicy Realm
Shared: Action Roguelike · Casual · Action

Boneraiser Minions
Shared: Action Roguelike · Pixel Graphics · Bullet Hell

Goobies
Shared: Action Roguelike · Top-Down Shooter · Bullet Hell

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Adventure

Asgard's Fall — Viking Survivors
Shared: Action Roguelike · Casual · Bullet Hell

Dead Cells
Shared: Action Roguelike · Adventure · Pixel Graphics

Eastward
Shared: Pixel Graphics · Adventure · RPG

Minishoot' Adventures
Shared: Bullet Hell · Adventure · Twin Stick Shooter