Games like Survivor Island
Games like Survivor Island include Terraria, Rust, Raft, Valheim, and The Forest. We matched them by the tags players give Survivor Island on Steam (Exploration, Sandbox, Crafting, Survival, and Building): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Sandbox · Survival · Crafting

Rust
Shared: Crafting · Survival · Sandbox

Raft
Shared: Survival · Crafting · Building

Valheim
Shared: Survival · Crafting · Exploration

The Forest
Shared: Survival · Crafting · Building

Scrap Mechanic
Shared: Sandbox · Building · Survival

Sons Of The Forest
Shared: Survival · Crafting · Exploration

ICARUS
Shared: Survival · Crafting · Exploration

Core Keeper
Shared: Exploration · Survival · Sandbox

Satisfactory
Shared: Crafting · Sandbox · Building

Stranded Deep
Shared: Survival · Crafting · Exploration

Project Zomboid
Shared: Survival · Sandbox · Crafting

ARK: Survival Evolved
Shared: Survival · Crafting · Building

The Long Dark
Shared: Exploration · Survival · Crafting

Once Human
Shared: Survival · Exploration · Building

Abiotic Factor
Shared: Survival · Crafting · Exploration

Don't Starve Together
Shared: Survival · Crafting · Sandbox

ASTRONEER
Shared: Exploration · Survival · Sandbox

Conan Exiles Enhanced
Shared: Survival · Building · Crafting

Green Hell
Shared: Survival · Crafting · Exploration

The Planet Crafter
Shared: Survival · Crafting · Building

Palworld
Shared: Survival · Crafting · Sandbox

Enshrouded
Shared: Survival · Crafting · Exploration

Don't Starve
Shared: Survival · Crafting · Sandbox