Games like Fellowship
Games like Fellowship include Halls of Torment, Vampire Survivors, Death Must Die, Soulstone Survivors, and Megabonk. We matched them by the tags players give Fellowship on Steam (Action Roguelike, Roguelite, Bullet Hell, Party-Based RPG, and Roguelike): closest matches first, and among equally close ones the better-known games.

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

Vampire Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

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

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell

Megabonk
Shared: Action Roguelike · Roguelite · Roguelike

Brotato
Shared: Action Roguelike · Bullet Hell · Roguelike

Hades
Shared: Action Roguelike · Roguelite · Roguelike

Nova Drift
Shared: Roguelite · Bullet Hell · Action Roguelike

20 Minutes Till Dawn
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades II
Shared: Roguelite · Roguelike · Action Roguelike

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

Magicraft
Shared: Action Roguelike · Roguelite · Bullet Hell

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

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

Beautiful Mystic Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Conquest Dark
Shared: Roguelite · Action Roguelike · Bullet Hell

Heroes of Hammerwatch II
Shared: Action Roguelike · Action RPG · Roguelite

The Binding of Isaac
Shared: Action Roguelike · Roguelike · Procedural Generation

Star of Providence
Shared: Roguelite · Action Roguelike · Bullet Hell

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

Hero Siege
Shared: Action Roguelike · Action RPG · Roguelike

Risk of Rain 2
Shared: Action Roguelike · Roguelite · Roguelike

God Of Weapons
Shared: Action Roguelike · Roguelite · Bullet Hell

Nuclear Throne
Shared: Action Roguelike · Roguelike · Bullet Hell