Games like Under the blue horizon
Games like Under the blue horizon include Stardew Valley, DAVE THE DIVER, Rusty's Retirement, Tiny Pasture, and Cookie Clicker. We matched them by the tags players give Under the blue horizon on Steam (Casual, Idler, Simulation, Relaxing, and Pixel Graphics): closest matches first, and among equally close ones the better-known games.

Stardew Valley
Shared: Pixel Graphics · Relaxing · Simulation

DAVE THE DIVER
Shared: Casual · Pixel Graphics · Relaxing

Rusty's Retirement
Shared: Idler · Simulation · Relaxing

Tiny Pasture
Shared: Idler · Casual · Pixel Graphics

Cookie Clicker
Shared: Idler · Casual · Pixel Graphics

Click the Button
Shared: Casual · Idler · Simulation

Digseum
Shared: Casual · Idler · Simulation

Unpacking
Shared: Casual · Relaxing · Pixel Graphics

House Flipper
Shared: Simulation · Casual · Relaxing

Shelldiver
Shared: Casual · Idler · Relaxing

Nodebuster
Shared: Casual · Idler · Simulation

Gas Station Simulator
Shared: Simulation · Casual · Building

Your Big, Cute Monster Farm
Shared: Casual · Simulation · Idler

Sticky Business
Shared: Casual · Simulation · Relaxing

Cast n Chill
Shared: Idler · Relaxing · Pixel Graphics

Click and Conquer
Shared: Casual · Simulation · Idler

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

Farm Together
Shared: Simulation · Casual · Relaxing

Mountain
Shared: Casual · Simulation · Relaxing

House Flipper 2
Shared: Casual · Relaxing · Simulation

Townscaper
Shared: Relaxing · Casual · Building

Potion Craft: Alchemist Simulator
Shared: Simulation · Relaxing · Casual

How to Train Your Cock
Shared: Idler · Casual · Relaxing

SUMMERHOUSE
Shared: Casual · Relaxing · Building