Games like Soul Stone Defense
Games like Soul Stone Defense include Thronefall, They Are Billions, Age of Darkness: Final Stand, Dungeon Defenders, and The Riftbreaker. We matched them by the tags players give Soul Stone Defense on Steam (Action, Strategy, Tower Defense, Action Roguelike, and Survival): closest matches first, and among equally close ones the better-known games.

Thronefall
Shared: Strategy · Tower Defense · Action

They Are Billions
Shared: Strategy · Base Building · Survival

Age of Darkness: Final Stand
Shared: Tower Defense · Strategy · Base Building

Dungeon Defenders
Shared: Tower Defense · Strategy · Survival

The Riftbreaker
Shared: Tower Defense · Base Building · Survival

Oxygen Not Included
Shared: Survival · Base Building · Building

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Building

DG2: Defense Grid 2
Shared: Strategy · Action · Tower Defense

Kingdom Rush - Tower Defense
Shared: Strategy · Tower Defense · Action

Monsters are Coming!
Shared: Action · Tower Defense · Action Roguelike

Mindustry
Shared: Tower Defense · Strategy · Base Building

Frostpunk
Shared: Strategy · Survival · Building

Bee Island
Shared: Strategy · Tower Defense · Action

ARK: Survival Ascended
Shared: Survival · Action · Base Building

GemCraft - Chasing Shadows
Shared: Strategy · Tower Defense · Action

Orcs Must Die! 3
Shared: Tower Defense · Strategy · Action

Cultivation Tales
Shared: Action · Survival · Building

Factorio
Shared: Strategy · Base Building · Survival

Cult of the Lamb
Shared: Action Roguelike · Base Building · Strategy

Once Human
Shared: Action · Survival · Building

PUBG: BATTLEGROUNDS
Shared: Survival · Action · Tactical

Kingdom Rush Origins - Tower Defense
Shared: Strategy · Tower Defense · Building

Until We Die
Shared: Strategy · Survival · Action

Tower Dominion
Shared: Strategy · Tower Defense · Base Building