Games like Litha and the Sunhouse
Games like Litha and the Sunhouse include Hades, Skul: The Hero Slayer, Vampire Survivors, Dead Cells, and Megabonk. We matched them by the tags players give Litha and the Sunhouse on Steam (Indie, Adventure, Action Roguelike, Action, and Roguelite): closest matches first, and among equally close ones the better-known games.

Hades
Shared: Action Roguelike · Indie · Roguelite

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

Vampire Survivors
Shared: Action Roguelike · Roguelite · Indie

Dead Cells
Shared: Adventure · Action Roguelike · Roguelike

Megabonk
Shared: Action Roguelike · Indie · Roguelite

Hades II
Shared: Action · Roguelite · Action Roguelike

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

Halls of Torment
Shared: Action Roguelike · Roguelite · Action

The Binding of Isaac
Shared: Indie · Action Roguelike · Roguelike

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

Lost Castle
Shared: Action Roguelike · Beat 'em up · Roguelite

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

Wizard with a Gun
Shared: Adventure · Action · Action-Adventure

ScourgeBringer
Shared: Indie · Adventure · Action

Nuclear Throne
Shared: Action Roguelike · Indie · Roguelike

Gunfire Reborn
Shared: Roguelite · Indie · Roguelike

Ravenswatch
Shared: Action Roguelike · Action · Roguelike

Cinderia
Shared: Action Roguelike · Roguelite · Action

Streets of Rogue
Shared: Action Roguelike · Roguelite · Indie

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

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

Hero Siege
Shared: Action Roguelike · Indie · Hack and Slash

The Binding of Isaac: Rebirth
Shared: Indie · Action Roguelike · Roguelike

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Bullet Hell