Games like Pediluvium
Games like Pediluvium include Slime Rancher 2, Ballads of Hongye: REBORN, Equilinox, Mountain, and My Dream Setup. We matched them by the tags players give Pediluvium on Steam (Simulation, Idler, Relaxing, Indie, and Nature): closest matches first, and among equally close ones the better-known games.

Slime Rancher 2
Shared: Relaxing · Simulation · Colorful

Ballads of Hongye: REBORN
Shared: Simulation · Relaxing · Nature

Equilinox
Shared: Simulation · Indie · Relaxing

Mountain
Shared: Simulation · Indie · Relaxing

My Dream Setup
Shared: Simulation · Relaxing · Indie

Townscaper
Shared: Relaxing · Simulation · Indie

PowerWash Simulator
Shared: Simulation · Relaxing · 3D

Passpartout: The Starving Artist
Shared: Simulation · Indie · Relaxing

Carto
Shared: Indie · Relaxing · Hand-drawn

Placid Plastic Duck Simulator
Shared: Relaxing · Simulation · 3D

DrainSim
Shared: Simulation · Relaxing · 3D

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

House Flipper
Shared: Simulation · Relaxing · Indie

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

Cat Mail Co.
Shared: Simulation · Relaxing · Indie

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

Totally Accurate Battle Simulator
Shared: Simulation · Indie · Colorful

Rusty's Retirement
Shared: Idler · Simulation · Relaxing

GRIS
Shared: Indie · Atmospheric · Relaxing

KOTAMON: My Sis Found A Super-Rare Card In Her Cereal Box, So I Became A Garbage Man To Find The Entire Collection And Earn $1,000,000
Shared: Simulation · Relaxing · Colorful

SUMMERHOUSE
Shared: Relaxing · Simulation · Colorful

Tiny Glade
Shared: Relaxing · Indie · Nature

A Game About Chopping Trees
Shared: Simulation · Relaxing · Nature

Crime Scene Cleaner
Shared: Simulation · Relaxing · Atmospheric