Games like Social Moth
Games like Social Moth include Detroit: Become Human, Emily is Away <3, Undertale, Before Your Eyes, and Coffee Talk. We matched them by the tags players give Social Moth on Steam (Emotional, Dialogue Heavy, 2D Platformer, Casual, and Singleplayer): closest matches first, and among equally close ones the better-known games.

Detroit: Become Human
Shared: Emotional · Choices Matter · Singleplayer

Emily is Away <3
Shared: Choices Matter · Casual · Emotional

Undertale
Shared: Choices Matter · Story Rich · Singleplayer

Before Your Eyes
Shared: Emotional · Singleplayer · Story Rich

Coffee Talk
Shared: Dialogue Heavy · Casual · Story Rich

To the Moon
Shared: Emotional · Story Rich · Singleplayer

Road 96
Shared: Colorful · Choices Matter · Story Rich

Hollow Knight
Shared: Singleplayer · Indie · Platformer

Forgotton Anne
Shared: Emotional · 2D Platformer · Story Rich

GRIS
Shared: Hand-drawn · Singleplayer · Indie

OneShot
Shared: Story Rich · Singleplayer · Indie

Growing Up
Shared: Emotional · Choices Matter · Story Rich

Thank Goodness You're Here!
Shared: Casual · 2D Platformer · Hand-drawn

Beacon Pines
Shared: Emotional · Colorful · Story Rich

Pizza Tower
Shared: 2D Platformer · Singleplayer · Indie

Persona 5 Royal
Shared: Singleplayer · Story Rich · Emotional

SANABI
Shared: 2D Platformer · Story Rich · Singleplayer

Impostor Factory
Shared: Emotional · Story Rich · Singleplayer

OMORI
Shared: Story Rich · Indie · Hand-drawn

Celeste
Shared: 2D Platformer · Singleplayer · Indie

Once Again
Shared: Casual · Emotional · Colorful

Gorogoa
Shared: Hand-drawn · Singleplayer · Casual

Neva
Shared: Emotional · 2D Platformer · Indie

Dispatch
Shared: Choices Matter · Singleplayer · Story Rich