Games like The Starfallen Prince
Games like The Starfallen Prince include Vampire Survivors, Hades II, Hades, Death Must Die, and Halls of Torment. We matched them by the tags players give The Starfallen Prince on Steam (Action, RPG, Action Roguelike, Action RPG, and Action-Adventure): closest matches first, and among equally close ones the better-known games.

Vampire Survivors
Shared: Action Roguelike · Bullet Hell · Roguelite

Hades II
Shared: Action · Roguelike · Action Roguelike

Hades
Shared: Action Roguelike · Action · Roguelite

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

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

Soulstone Survivors
Shared: Action Roguelike · Action RPG · RPG

Black Myth: Wukong
Shared: Action · Action RPG · RPG

暖雪 Warm Snow
Shared: Action Roguelike · Action-Adventure · RPG

Nordic Ashes: Survivors of Ragnarok
Shared: Action Roguelike · Action RPG · RPG

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

Hero Siege
Shared: Action RPG · Action Roguelike · RPG

Megabonk
Shared: Action Roguelike · Roguelike · Action

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

Rogue Legacy
Shared: Action · Action Roguelike · Roguelike

Brotato
Shared: Action Roguelike · Roguelike · Bullet Hell

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

Dungreed
Shared: Action Roguelike · Action · Roguelike

Magicraft
Shared: Action Roguelike · RPG · Bullet Hell

BALL x PIT
Shared: Action · Action Roguelike · Roguelike

Realm of Ink
Shared: Action Roguelike · Action RPG · Roguelite

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

Conquest Dark
Shared: Action · Action RPG · Action Roguelike

Children of Morta
Shared: Roguelike · Action Roguelike · RPG

Cultivation Story: Reincarnation
Shared: RPG · Action Roguelike · Action