Games like Seal of Shadows
Games like Seal of Shadows include Grim Dawn, Diablo® IV, Path of Exile, Path of Exile 2, and Lost Castle. We matched them by the tags players give Seal of Shadows on Steam (Action RPG, Hack and Slash, Beat 'em up, Side Scroller, and Local Co-Op): closest matches first, and among equally close ones the better-known games.

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

Diablo® IV
Shared: Action RPG · Hack and Slash · Dungeon Crawler

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

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

Lost Castle
Shared: Beat 'em up · Side Scroller · Hack and Slash

Chronicon
Shared: Action RPG · Hack and Slash · Dungeon Crawler

Rotwood
Shared: Hack and Slash · Beat 'em up · Dungeon Crawler

Wolcen: Lords of Mayhem
Shared: Action RPG · Hack and Slash · RPG

Last Epoch
Shared: Action RPG · Hack and Slash · RPG

Torchlight II
Shared: Action RPG · Hack and Slash · Dungeon Crawler

Dungeons of Sundaria
Shared: Hack and Slash · Action RPG · Dungeon Crawler

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

Castle Crashers®
Shared: Beat 'em up · Hack and Slash · 2D

Titan Quest II
Shared: Action RPG · Hack and Slash · Dungeon Crawler

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

Cat Quest II
Shared: Action RPG · Hack and Slash · Local Co-Op

The Slormancer
Shared: Hack and Slash · Action RPG · Dungeon Crawler

ASTLIBRA Revision
Shared: Action RPG · Side Scroller · 2D

Absolum
Shared: Beat 'em up · Local Co-Op · Side Scroller

Hammerwatch II
Shared: Action RPG · Hack and Slash · Dungeon Crawler

Regions Of Ruin
Shared: Hack and Slash · Action RPG · Side Scroller

Teenage Mutant Ninja Turtles: Shredder's Revenge
Shared: Beat 'em up · Side Scroller · Arcade

Dungeon Fighter Online
Shared: Beat 'em up · Character Customization · RPG

Young Souls
Shared: Action RPG · Hack and Slash · Beat 'em up