Games like Grim Trials
Games like Grim Trials include Hades II, Hades, Lost Castle, 暖雪 Warm Snow, and Moonlighter. We matched them by the tags players give Grim Trials on Steam (Action Roguelike, Hack and Slash, Dungeon Crawler, Roguelite, and Beat 'em up): closest matches first, and among equally close ones the better-known games.

Hades II
Shared: Hack and Slash · Roguelite · Action Roguelike

Hades
Shared: Action Roguelike · Hack and Slash · Roguelite

Lost Castle
Shared: Action Roguelike · Dungeon Crawler · Beat 'em up

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

Moonlighter
Shared: Hack and Slash · Dungeon Crawler · Roguelite

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

Cinderia
Shared: Action Roguelike · Hack and Slash · Roguelite

Going Under
Shared: Action Roguelike · Dungeon Crawler · Hack and Slash

Realm of Ink
Shared: Action Roguelike · Roguelite · Hack and Slash

Dead Cells
Shared: Action Roguelike · Roguelike · Roguelite

Halls of Torment
Shared: Action Roguelike · Roguelite · Action RPG

Children of Morta
Shared: Hack and Slash · Action Roguelike · Roguelike

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

Rotwood
Shared: Hack and Slash · Dungeon Crawler · Roguelite

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

Death Must Die
Shared: Action Roguelike · Roguelite · Hack and Slash

Path of Exile 2
Shared: Hack and Slash · Action RPG · Dungeon Crawler

Moon Hunters
Shared: Hack and Slash · Action Roguelike · Roguelite

Soulstone Survivors
Shared: Action Roguelike · Roguelite · Action RPG

Grim Dawn
Shared: Hack and Slash · Action RPG · Dungeon Crawler

Minecraft Dungeons
Shared: Hack and Slash · Dungeon Crawler · Action RPG

Wizard of Legend
Shared: Action Roguelike · Dungeon Crawler · Roguelike

VOIN
Shared: Hack and Slash · Action Roguelike · Action RPG

Garden of Witches
Shared: Action Roguelike · Roguelite · Hack and Slash

