Games like Duncan and the Wisp
Games like Duncan and the Wisp include Marvel Rivals, Neverwinter, Wuthering Waves, Idle Champions of the Forgotten Realms, and Warframe. We matched them by the tags players give Duncan and the Wisp on Steam (Free to Play, Adventure, Action, RPG, and Indie): closest matches first, and among equally close ones the better-known games.

Marvel Rivals
Shared: Free to Play · Action · Adventure

Neverwinter
Shared: Free to Play · RPG · Adventure

Wuthering Waves
Shared: Free to Play · Action · Adventure

Idle Champions of the Forgotten Realms
Shared: Free to Play · Adventure · Indie

Warframe
Shared: Free to Play · Action · RPG

Where Winds Meet
Shared: Free to Play · Adventure · RPG

Once Human
Shared: Free to Play · Action · Adventure

SMITE®
Shared: Free to Play · Action · Indie

Honkai Impact 3rd
Shared: Free to Play · Action · Adventure

Blue Protocol: Star Resonance
Shared: Free to Play · Action · Adventure

Cat Quest
Shared: Adventure · RPG · Action

Caster
Shared: Action · Adventure · Indie

Juicy Realm
Shared: Action · Adventure · Indie

Aimlabs
Shared: Free to Play · Action · Adventure

The First Descendant
Shared: Free to Play · RPG · Action

G2 Fighter / 基因特工
Shared: Adventure · RPG · Action

Apex Legends™
Shared: Free to Play · Action · Adventure

Notes of Soul
Shared: Action · Adventure · Indie

Brawlhalla
Shared: Free to Play · Casual · Action

NTE: Neverness to Everness
Shared: Free to Play · RPG · Adventure

Dust: An Elysian Tail
Shared: Action · Adventure · RPG

Bladed fury
Shared: Action · Adventure · Indie

Path of Exile
Shared: Free to Play · RPG · Indie

Guild Wars 2®
Shared: Adventure · Free to Play · RPG