Games like Soulash 2
Games like Soulash 2 include Core Keeper, Kenshi, Terraria, Enshrouded, and No Man's Sky. We matched them by the tags players give Soulash 2 on Steam (Sandbox, RPG, Procedural Generation, Open World, and Exploration): closest matches first, and among equally close ones the better-known games.

Core Keeper
Shared: Open World · Sandbox · Exploration

Kenshi
Shared: Sandbox · Open World · RPG

Terraria
Shared: Sandbox · Survival · Exploration

Enshrouded
Shared: Open World · RPG · Survival

No Man's Sky
Shared: Open World · Exploration · Procedural Generation

Conan Exiles Enhanced
Shared: Open World · Sandbox · RPG

Rust
Shared: Open World · Sandbox · Crafting

Don't Starve Together
Shared: Open World · Sandbox · Survival

Don't Starve
Shared: Sandbox · Crafting · Survival

The Long Dark
Shared: Open World · Exploration · Sandbox

Mount & Blade II: Bannerlord
Shared: RPG · Open World · Sandbox

Once Human
Shared: Open World · Exploration · Survival

Valheim
Shared: Open World · Survival · Exploration

Project Zomboid
Shared: Open World · Sandbox · Survival

Satisfactory
Shared: Open World · Sandbox · Crafting

The Forest
Shared: Open World · Survival · Crafting

The Scroll of Taiwu : Beyond The Dome
Shared: RPG · Sandbox · Open World

7 Days to Die
Shared: Open World · Survival · Sandbox

RimWorld
Shared: Sandbox · Survival · Simulation

Mount & Blade: Warband
Shared: RPG · Sandbox · Open World

Palworld
Shared: Open World · Survival · Crafting

Stardew Valley
Shared: RPG · Sandbox · Simulation

Trove
Shared: Sandbox · Open World · Procedural Generation

My Time at Portia
Shared: RPG · Open World · Simulation