Games like My Island
Games like My Island include Rust, ARK: Survival Evolved, Raft, Valheim, and Don't Starve Together. We matched them by the tags players give My Island on Steam (Open World Survival Craft, Survival, Multiplayer, Open World, and Crafting): closest matches first, and among equally close ones the better-known games.

Rust
Shared: Survival · Multiplayer · Open World Survival Craft

ARK: Survival Evolved
Shared: Open World Survival Craft · Survival · Multiplayer

Raft
Shared: Survival · Open World Survival Craft · Multiplayer

Valheim
Shared: Open World Survival Craft · Survival · Open World

Don't Starve Together
Shared: Open World Survival Craft · Survival · Multiplayer

Terraria
Shared: Open World Survival Craft · Survival · Multiplayer

Palworld
Shared: Survival · Open World · Open World Survival Craft

Conan Exiles Enhanced
Shared: Survival · Open World · Open World Survival Craft

Project Zomboid
Shared: Survival · Open World Survival Craft · Multiplayer

The Forest
Shared: Open World Survival Craft · Survival · Open World

Once Human
Shared: Open World · Multiplayer · Survival

7 Days to Die
Shared: Survival · Multiplayer · Open World Survival Craft

Green Hell
Shared: Open World Survival Craft · Survival · Multiplayer

Stranded Deep
Shared: Open World Survival Craft · Survival · Multiplayer

ARK: Survival Ascended
Shared: Survival · Multiplayer · Open World

Don't Starve
Shared: Open World Survival Craft · Survival · Crafting

ASTRONEER
Shared: Open World Survival Craft · Multiplayer · Open World

Subnautica
Shared: Open World Survival Craft · Survival · Open World

Sons Of The Forest
Shared: Survival · Multiplayer · Open World

Enshrouded
Shared: Survival · Open World · Multiplayer

Satisfactory
Shared: Open World · Multiplayer · Crafting

Grounded
Shared: Survival · Multiplayer · Open World Survival Craft

Craftopia
Shared: Survival · Open World · Open World Survival Craft

ICARUS
Shared: Open World Survival Craft · Survival · Multiplayer