Games like iZolated
Games like iZolated include 7 Days to Die, Fallout 4, Fallout: New Vegas, Terraria, and Core Keeper. We matched them by the tags players give iZolated on Steam (Exploration, Sandbox, Character Customization, Post-apocalyptic, and RPG): closest matches first, and among equally close ones the better-known games.

7 Days to Die
Shared: Post-apocalyptic · Open World · Exploration

Fallout 4
Shared: Exploration · Post-apocalyptic · Open World

Fallout: New Vegas
Shared: Post-apocalyptic · RPG · Exploration

Terraria
Shared: Sandbox · Exploration · Adventure

Core Keeper
Shared: Exploration · Sandbox · Open World

Kenshi
Shared: Sandbox · RPG · Open World

The Forest
Shared: Horror · Open World · Exploration

Enshrouded
Shared: Open World · Exploration · RPG

Subnautica
Shared: Exploration · Horror · Open World

Dune: Awakening
Shared: Exploration · Sandbox · Base Building

Project Zomboid
Shared: Sandbox · Post-apocalyptic · Open World

No Man's Sky
Shared: Exploration · Open World · Sandbox

Sons Of The Forest
Shared: Open World · Horror · Exploration

VEIN
Shared: Exploration · Post-apocalyptic · Open World

Fallout 3
Shared: Post-apocalyptic · Exploration · RPG

ARK: Survival Ascended
Shared: Open World · Sandbox · Character Customization

The Long Dark
Shared: Exploration · Open World · Sandbox

Valheim
Shared: Exploration · Open World · Base Building

Hogwarts Legacy
Shared: Exploration · Character Customization · Open World

Grounded
Shared: Exploration · Open World · Base Building

Fallout 76
Shared: Post-apocalyptic · RPG · Open World

SurrounDead
Shared: Post-apocalyptic · Exploration · Open World

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

Monster Hunter: World
Shared: Character Customization · RPG · Open World