Games like Roots of Harmony
Games like Roots of Harmony include Warhammer 40,000: Rogue Trader, Legendary Creatures 2, Arco, Quasimorph, and Wartales. We matched them by the tags players give Roots of Harmony on Steam (Turn-Based Strategy, Exploration, Auto Battler, Text-Based, and Procedural Generation): closest matches first, and among equally close ones the better-known games.

Warhammer 40,000: Rogue Trader
Shared: Turn-Based Strategy · Choices Matter · Turn-Based Combat

Legendary Creatures 2
Shared: Exploration · Auto Battler · Turn-Based Strategy

Arco
Shared: Turn-Based Strategy · Exploration · Choices Matter

Quasimorph
Shared: Turn-Based Strategy · Choices Matter · Turn-Based Combat

Wartales
Shared: Turn-Based Strategy · Turn-Based Combat · RPG

鬼谷八荒 Tale of Immortal
Shared: Management · Exploration · Choose Your Own Adventure

Legend Creatures(传奇生物)
Shared: Exploration · Auto Battler · Indie

The Alters
Shared: Exploration · Resource Management · Base Building

The Life and Suffering of Sir Brante
Shared: Choices Matter · Text-Based · Choose Your Own Adventure

60 Parsecs!
Shared: Turn-Based Strategy · Text-Based · Exploration

Oxygen Not Included
Shared: Resource Management · Base Building · Management

60 Seconds! Reatomized
Shared: Exploration · Choose Your Own Adventure · Text-Based

The Last Flame
Shared: Auto Battler · Turn-Based Strategy · Procedural Generation

60 Seconds!
Shared: Exploration · Choose Your Own Adventure · Text-Based

The World of Kungfu: Dragon and Eagle
Shared: Turn-Based Combat · Exploration · RPG

Time Walker: Dark World
Shared: Turn-Based Strategy · Auto Battler · Resource Management

Age of Wonders 4
Shared: Turn-Based Strategy · Strategy · Turn-Based Combat

Mewgenics
Shared: Turn-Based Strategy · Turn-Based Combat · RPG

The Nameless: Slay Dragon
Shared: Turn-Based Combat · RPG · Choices Matter

The Last Spell
Shared: Turn-Based Strategy · Turn-Based Combat · Strategy

Road 96
Shared: Choices Matter · Exploration · Choose Your Own Adventure

Roadwarden
Shared: Text-Based · Choose Your Own Adventure · Choices Matter

无休仙途
Shared: Turn-Based Strategy · Resource Management · Auto Battler

Curious Expedition
Shared: Exploration · Turn-Based Strategy · RPG