Games like Nelson and the Magic Cauldron
Games like Nelson and the Magic Cauldron include There Is No Game: Wrong Dimension, Deponia, That's not my Neighbor, Rusty Lake Paradise, and The White Door. We matched them by the tags players give Nelson and the Magic Cauldron on Steam (Adventure, Point & Click, 2D, Cartoony, and Indie): closest matches first, and among equally close ones the better-known games.

There Is No Game: Wrong Dimension
Shared: Point & Click · Adventure · Indie

Deponia
Shared: Adventure · Point & Click · Indie

That's not my Neighbor
Shared: Adventure · Point & Click · Indie

Rusty Lake Paradise
Shared: Point & Click · Adventure · Indie

The White Door
Shared: Adventure · Point & Click · Indie

The Mr. Rabbit Magic Show
Shared: Adventure · Point & Click · 2D

Samsara Room
Shared: Adventure · Indie · Point & Click

Dropsy
Shared: Adventure · Point & Click · 2D

Storyteller
Shared: Point & Click · Adventure · 2D

Servant of the Lake
Shared: Adventure · Point & Click · Indie

Little Misfortune
Shared: Point & Click · Indie · Adventure

Broken Age
Shared: Adventure · Point & Click · Indie

Creepy Tale 2
Shared: Adventure · Point & Click · Indie

Thimbleweed Park™
Shared: Adventure · Point & Click · Indie

Terraria
Shared: 2D · Adventure · Indie

Hollow Knight: Silksong
Shared: Indie · 2D · Adventure

Chants of Sennaar
Shared: Adventure · Point & Click · Indie

Fran Bow
Shared: Point & Click · Adventure · Indie

Papers, Please
Shared: Point & Click · Indie · 2D

Chaos on Deponia
Shared: Adventure · Point & Click · Indie

Deponia Doomsday
Shared: Adventure · Point & Click · Indie

Dead Synchronicity: Tomorrow Comes Today
Shared: Adventure · Point & Click · 2D

HIVESWAP: ACT 1
Shared: Adventure · Point & Click · Indie

Return to Monkey Island
Shared: Adventure · Point & Click · 2D