Games like Candy Harvest
Games like Candy Harvest include Half-Life 2, Portal 2, Outer Wilds, Stray, and The Turing Test. We matched them by the tags players give Candy Harvest on Steam (Adventure, Singleplayer, Puzzle, Nonlinear, and Cartoon): closest matches first, and among equally close ones the better-known games.

Half-Life 2
Shared: Singleplayer · Adventure · FPS

Portal 2
Shared: Singleplayer · Puzzle · First-Person

Outer Wilds
Shared: Adventure · Puzzle · Singleplayer

Stray
Shared: Adventure · Singleplayer · Atmospheric

The Turing Test
Shared: Puzzle · Adventure · Singleplayer

Atomic Heart
Shared: Adventure · Singleplayer · Puzzle

The Talos Principle
Shared: Puzzle · Singleplayer · First-Person

Fallout 4
Shared: Singleplayer · Adventure · Atmospheric

BioShock Infinite
Shared: Singleplayer · Adventure · First-Person

Antichamber
Shared: Puzzle · Singleplayer · Adventure

Black Mesa
Shared: Singleplayer · FPS · First-Person

Portal
Shared: Puzzle · Singleplayer · First-Person

The Witness
Shared: Puzzle · Singleplayer · First-Person

The Room
Shared: Puzzle · Singleplayer · Adventure

ROUTINE
Shared: Singleplayer · Adventure · Atmospheric

Bendy and the Ink Machine
Shared: Singleplayer · Puzzle · Cartoon

Moncage
Shared: Puzzle · Singleplayer · Adventure

Poppy Playtime
Shared: Singleplayer · Puzzle · First-Person

A Story About My Uncle
Shared: Adventure · Singleplayer · First-Person

Gorogoa
Shared: Puzzle · Singleplayer · Hand-drawn

Little Nightmares II
Shared: Adventure · Singleplayer · Puzzle

COCOON
Shared: Adventure · Puzzle · Singleplayer

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Singleplayer · Atmospheric · FPS

The Last Campfire
Shared: Adventure · Puzzle · Singleplayer