Games like What's Inside??
Games like What's Inside?? include There Is No Game: Wrong Dimension, Tales of the Black Forest, Senren * Banka, Fox Hime Zero, and Melvor Idle. We matched them by the tags players give What's Inside?? on Steam (Adventure, Indie, Casual, RPG, and Horror): closest matches first, and among equally close ones the better-known games.

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Casual

Tales of the Black Forest
Shared: Indie · RPG · Adventure

Senren * Banka
Shared: Visual Novel · Casual · Adventure

Fox Hime Zero
Shared: Indie · Adventure · Visual Novel

Melvor Idle
Shared: Casual · Indie · RPG

Florence
Shared: Indie · Adventure · Casual

Fox Hime
Shared: Casual · Indie · Adventure

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

Fluffy Store
Shared: Indie · Adventure · Visual Novel

To the Moon
Shared: Indie · Adventure · RPG

The Stanley Parable
Shared: Indie · Comedy · Adventure

Otaku's Adventure
Shared: Indie · Adventure · RPG

Firewatch
Shared: Adventure · Indie · First-Person

Cookie Clicker
Shared: Casual · Indie · Horror

千面 Melancholy Love
Shared: Indie · Casual · Adventure

Thank Goodness You're Here!
Shared: Adventure · Comedy · Casual

Lethal Company
Shared: Horror · First-Person · Indie

West of Loathing
Shared: RPG · Adventure · Comedy

Costume Quest
Shared: Adventure · RPG · Casual

Dream Ending
Shared: Indie · Adventure · Casual

Dungeon Munchies
Shared: Indie · Adventure · RPG

Epic Battle Fantasy 4
Shared: Indie · Adventure · RPG

That's not my Neighbor
Shared: Adventure · Casual · Indie

Billionaire Lovers
Shared: RPG · Visual Novel · Casual