Games like Mask City
Games like Mask City include Dispatch, The Wolf Among Us, Batman™: Arkham Knight, Batman - The Telltale Series, and Batman: The Enemy Within - The Telltale Series. We matched them by the tags players give Mask City on Steam (Action, Visual Novel, 2D, Comic Book, and Comedy): closest matches first, and among equally close ones the better-known games.

Dispatch
Shared: Choices Matter · Comedy · Singleplayer

The Wolf Among Us
Shared: Detective · Visual Novel · Adventure

Batman™: Arkham Knight
Shared: Action · Detective · Adventure

Batman - The Telltale Series
Shared: Choices Matter · Action · Adventure

Batman: The Enemy Within - The Telltale Series
Shared: Choices Matter · Adventure · Comic Book

Marvel's Guardians of the Galaxy
Shared: Action · Singleplayer · Choices Matter

Marvel’s Spider-Man Remastered
Shared: Action · Adventure · Superhero

Phoenix Wright: Ace Attorney Trilogy
Shared: Visual Novel · Detective · Singleplayer

South Park™: The Stick of Truth™
Shared: Comedy · Action · Adventure

Marvel's Spider-Man 2
Shared: Action · Adventure · Comic Book

Batman™: Arkham Origins
Shared: Action · Adventure · Superhero

Tales from the Borderlands
Shared: Comedy · Adventure · Choices Matter

Undertale
Shared: Choices Matter · 2D · Comedy

SANABI
Shared: Action · 2D · Adventure

Aviary Attorney
Shared: Visual Novel · Detective · Indie

AI: The Somnium Files
Shared: Visual Novel · Detective · Adventure

Invincible Presents: Atom Eve
Shared: Visual Novel · Action · Adventure

Marvel’s Spider-Man: Miles Morales
Shared: Action · Adventure · Singleplayer

Pizza Tower
Shared: Indie · Action · Comedy

Far Away
Shared: Visual Novel · Choices Matter · Singleplayer

Skul: The Hero Slayer
Shared: Action · 2D · Indie

Danganronpa: Trigger Happy Havoc
Shared: Visual Novel · Detective · Singleplayer

Disco Elysium - The Final Cut
Shared: Detective · Choices Matter · Visual Novel

Pyre
Shared: Action · Visual Novel · Indie