Games like The Soul Stone War
Games like The Soul Stone War include Roadwarden, The Life and Suffering of Sir Brante, Suzerain, Florence, and To the Moon. We matched them by the tags players give The Soul Stone War on Steam (RPG, Indie, Casual, Adventure, and Choose Your Own Adventure): closest matches first, and among equally close ones the better-known games.

Roadwarden
Shared: RPG · Indie · Adventure

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

Suzerain
Shared: Choose Your Own Adventure · RPG · Interactive Fiction

Florence
Shared: Indie · Casual · Adventure

To the Moon
Shared: Indie · Adventure · RPG

Baldur's Gate 3
Shared: RPG · Choices Matter · Adventure

Choice of Robots
Shared: Choose Your Own Adventure · Indie · RPG

Reigns
Shared: Indie · RPG · Choices Matter

Wayhaven Chronicles: Book Two
Shared: Indie · Casual · RPG

Yes, Your Grace
Shared: Indie · RPG · Choices Matter

Vampire: The Masquerade — Parliament of Knives
Shared: RPG · Indie · Casual

LoveChoice
Shared: Romance · Choices Matter · Casual

Fallen Hero: Rebirth
Shared: Indie · RPG · Adventure

Wayhaven Chronicles: Book One
Shared: RPG · Indie · Adventure

Melvor Idle
Shared: RPG · Casual · Indie

Road to Empress Ⅱ
Shared: Adventure · Choices Matter · RPG

Sorcery! Parts 1 and 2
Shared: RPG · Indie · Choose Your Own Adventure

Vampire: The Masquerade — Night Road
Shared: Choose Your Own Adventure · RPG · Text-Based

Emily is Away Too
Shared: Indie · Casual · Choices Matter

Fallen Hero: Retribution
Shared: RPG · Casual · Adventure

There Is No Game: Wrong Dimension
Shared: Indie · Adventure · Casual

Monster Loves You!
Shared: Indie · Casual · RPG

Late Shift
Shared: Choose Your Own Adventure · Choices Matter · Indie

Far Away
Shared: Choices Matter · Choose Your Own Adventure · Indie