Games like Scam Grandpa
Games like Scam Grandpa include Class of '09: The Flip Side, BURIED STARS, Class of '09: The Re-Up, Kugayama Shiori's Death Diary, and Astrologaster. We matched them by the tags players give Scam Grandpa on Steam (Thriller, Comedy, Visual Novel, Dark Comedy, and Choose Your Own Adventure): closest matches first, and among equally close ones the better-known games.

Class of '09: The Flip Side
Shared: Comedy · Visual Novel · Dark Comedy

BURIED STARS
Shared: Thriller · Visual Novel · Interactive Fiction

Class of '09: The Re-Up
Shared: Visual Novel · Comedy · Choose Your Own Adventure

Kugayama Shiori's Death Diary
Shared: Visual Novel · Adventure · Choose Your Own Adventure

Astrologaster
Shared: Comedy · Visual Novel · Choose Your Own Adventure

Rewrite+
Shared: Visual Novel · Adventure · Choose Your Own Adventure

Is the Vat Utopia or Dystopia?
Shared: Visual Novel · Dark Comedy · Comedy

The Henry Stickmin Collection
Shared: Comedy · Choose Your Own Adventure · Adventure

The Wolf Among Us
Shared: Adventure · Visual Novel · Choose Your Own Adventure

Far Away
Shared: Visual Novel · Choose Your Own Adventure · Adventure

Marco & The Galaxy Dragon
Shared: Visual Novel · Adventure · Comedy

Suzerain
Shared: Visual Novel · Choose Your Own Adventure · Interactive Fiction

Endless Monday: Dreams and Deadlines
Shared: Visual Novel · Choose Your Own Adventure · Interactive Fiction

Vampires' Melody
Shared: Visual Novel · Adventure · Casual

I Wani Hug that Gator!
Shared: Visual Novel · Choose Your Own Adventure · Comedy

Refind Self: The Personality Test Game
Shared: Visual Novel · Adventure · Choose Your Own Adventure

Kindergarten 3
Shared: Dark Comedy · Choose Your Own Adventure · Comedy

Until Then
Shared: Visual Novel · Adventure · Interactive Fiction

Loretta
Shared: Visual Novel · Thriller · Choose Your Own Adventure

Tales from the Borderlands
Shared: Comedy · Adventure · Choose Your Own Adventure

Danganronpa 2: Goodbye Despair
Shared: Visual Novel · Dark Comedy · Adventure

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

美女,请别影响我成仙
Shared: Visual Novel · Comedy · Casual

OXENFREE II: Lost Signals
Shared: Thriller · Adventure · Choose Your Own Adventure