Games like Treasure Blast Quest
Games like Treasure Blast Quest include Banana, There Is No Game: Wrong Dimension, Plants vs. Zombies GOTY Edition, Storyteller, and That's not my Neighbor. We matched them by the tags players give Treasure Blast Quest on Steam (Casual, Point & Click, 2D Platformer, 2D, and Loot): closest matches first, and among equally close ones the better-known games.

Banana
Shared: Casual · 2D · Singleplayer

There Is No Game: Wrong Dimension
Shared: Point & Click · Casual · 2D

Plants vs. Zombies GOTY Edition
Shared: Casual · Singleplayer · 2D

Storyteller
Shared: Point & Click · 2D · Casual

That's not my Neighbor
Shared: Casual · Point & Click · 2D

Game Dev Tycoon
Shared: Casual · Singleplayer · 2D

Samorost 1
Shared: Point & Click · Casual · 2D

Hidden Folks
Shared: Casual · Point & Click · 2D

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

Gorogoa
Shared: Casual · Point & Click · Singleplayer

CHUCHEL
Shared: Casual · Point & Click · 2D

Machinarium
Shared: Point & Click · 2D · Casual

A Little to the Left
Shared: Casual · Point & Click · Singleplayer

Zup!
Shared: Casual · 2D · Point & Click

Melvor Idle
Shared: Casual · Singleplayer · 2D

Please, Don’t Touch Anything
Shared: Point & Click · Casual · Singleplayer

The Murder of Sonic the Hedgehog
Shared: Point & Click · Casual · Singleplayer

Zup! 2
Shared: Casual · 2D · Point & Click

Zup! F
Shared: Casual · 2D · Point & Click

Peggle Deluxe
Shared: Casual · 2D · Singleplayer

Zup! X
Shared: Casual · 2D · Point & Click

McPixel 3
Shared: Point & Click · Casual · 2D

Zup! S
Shared: Casual · 2D · Singleplayer

Zup! 3
Shared: Casual · 2D · Point & Click