Games like Expelled!
Games like Expelled! include Pentiment, No Case Should Remain Unsolved, Her Story, Murder by Numbers, and Lay a Beauty to Rest: The Darkness Peach Blossom Spring. We matched them by the tags players give Expelled! on Steam (Investigation, Interactive Fiction, Comic Book, Female Protagonist, and Hand-drawn): closest matches first, and among equally close ones the better-known games.

Pentiment
Shared: Investigation · Interactive Fiction · Hand-drawn

No Case Should Remain Unsolved
Shared: Investigation · Interactive Fiction · Visual Novel

Her Story
Shared: Investigation · Interactive Fiction · Female Protagonist

Murder by Numbers
Shared: Investigation · Female Protagonist · Interactive Fiction

Lay a Beauty to Rest: The Darkness Peach Blossom Spring
Shared: Interactive Fiction · Investigation · Visual Novel

Far Away
Shared: Female Protagonist · Visual Novel · Choices Matter

Road to Empress I
Shared: Female Protagonist · Choices Matter · Visual Novel

Refind Self: The Personality Test Game
Shared: Interactive Fiction · Female Protagonist · Visual Novel

Endless Monday: Dreams and Deadlines
Shared: Interactive Fiction · Hand-drawn · Visual Novel

Magical Girl Witch Trials
Shared: Female Protagonist · Visual Novel · Mystery

Overboard!
Shared: Interactive Fiction · Hand-drawn · Adventure

Mirror 2: Project X
Shared: Female Protagonist · Interactive Fiction · Visual Novel

Sanfu
Shared: Mystery · Hand-drawn · Visual Novel

The Hungry Lamb: Traveling in the Late Ming Dynasty
Shared: Interactive Fiction · Visual Novel · Historical

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Hand-drawn · Interactive Fiction

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

The Mermaid Mask
Shared: Interactive Fiction · Adventure · Investigation

Tails Noir
Shared: Interactive Fiction · Dialogue Heavy · Investigation

BURIED STARS
Shared: Interactive Fiction · Visual Novel · Investigation

Methods: The Detective Competition
Shared: Investigation · Visual Novel · Funny

The Case of the Golden Idol
Shared: Investigation · Mystery · Interactive Fiction

Suzerain
Shared: Interactive Fiction · Visual Novel · Choices Matter

The Cosmic Wheel Sisterhood
Shared: Female Protagonist · Interactive Fiction · Visual Novel

Road to Empress Ⅱ
Shared: Female Protagonist · Interactive Fiction · Adventure