Games like Happy Harvest
Games like Happy Harvest include Stardew Valley, Tiny Pasture, Farm Together, Rusty's Retirement, and Unpacking. We matched them by the tags players give Happy Harvest on Steam (Casual, Idler, Relaxing, Farming Sim, and Cute): closest matches first, and among equally close ones the better-known games.

Stardew Valley
Shared: Farming Sim · Relaxing · Agriculture

Tiny Pasture
Shared: Idler · Farming Sim · Cute

Farm Together
Shared: Relaxing · Casual · Agriculture

Rusty's Retirement
Shared: Idler · Farming Sim · Relaxing

Unpacking
Shared: Casual · Relaxing · Cute

Keep on Mining!
Shared: Idler · Casual · Relaxing

Slime Rancher 2
Shared: Relaxing · Cute · Singleplayer

Zup! S
Shared: Casual · Relaxing · Indie

Chill with You : Lo-Fi Story
Shared: Casual · Relaxing · Idler

Coral Island
Shared: Farming Sim · Relaxing · Agriculture

Your Big, Cute Monster Farm
Shared: Casual · Idler · Farming Sim

Incredicer
Shared: Idler · Casual · Relaxing

A Game About Feeding A Black Hole
Shared: Casual · Relaxing · Idler

Melvor Idle
Shared: Idler · Casual · Singleplayer

DAVE THE DIVER
Shared: Casual · Relaxing · Singleplayer

LEGO® Builder's Journey
Shared: Casual · Relaxing · Cute

Paleo Pines
Shared: Farming Sim · Relaxing · Casual

Mountain
Shared: Casual · Relaxing · Indie

Assemble with Care
Shared: Casual · Relaxing · Indie

A Short Hike
Shared: Relaxing · Casual · Cute

Tiny Terraces
Shared: Idler · Farming Sim · Casual

Plantera
Shared: Idler · Farming Sim · Agriculture

STORY OF SEASONS: Friends of Mineral Town
Shared: Casual · Farming Sim · Cute

Shelldiver
Shared: Casual · Idler · Relaxing