Games like Rosttle
Games like Rosttle include Vampire Survivors, Death Must Die, Nordic Ashes: Survivors of Ragnarok, Balatro, and Halls of Torment. We matched them by the tags players give Rosttle on Steam (Bullet Hell, Casual, Roguelike, Action Roguelike, and Action RPG): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Bullet Hell · Action Roguelike · Roguelite

Death Must Die
Shared: Bullet Hell · Action Roguelike · Roguelite

Nordic Ashes: Survivors of Ragnarok
Shared: Bullet Hell · Action Roguelike · Roguelike

Balatro
Shared: Roguelike · Card Game · Deckbuilding

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

Megabonk
Shared: Roguelike · Action Roguelike · Bullet Hell

Soulstone Survivors
Shared: Bullet Hell · Action Roguelike · Roguelike

Brotato
Shared: Bullet Hell · Roguelike · Action Roguelike

Magicraft
Shared: Bullet Hell · Action Roguelike · Roguelike

Slay the Spire 2
Shared: Roguelike · Card Game · Deckbuilding

Slay the Spire
Shared: Roguelike · Card Game · Deckbuilding

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

Noobs Want to Live
Shared: Bullet Hell · Roguelike · Casual

One Step From Eden
Shared: Action Roguelike · Roguelite · Deckbuilding

Nova Drift
Shared: Bullet Hell · Action Roguelike · Roguelite

Hades
Shared: Action Roguelike · Roguelike · Roguelite

RACCOIN: Coin Pusher Roguelike
Shared: Roguelike · Casual · Deckbuilding

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

Hero Siege
Shared: Action RPG · Action Roguelike · Roguelike

Boneraiser Minions
Shared: Bullet Hell · Action Roguelike · Roguelite

Hades II
Shared: Roguelike · Action Roguelike · Roguelite

Tower of Babel: Survivors of Chaos
Shared: Bullet Hell · Action Roguelike · Roguelike

Pass the Fear
Shared: Bullet Hell · Action Roguelike · Roguelike

Astro Prospector
Shared: Casual · Roguelike · Bullet Hell