Games like Survive The Island
Games like Survive The Island include Once Human, Rust, Enshrouded, Warframe, and ARK: Survival Ascended. We matched them by the tags players give Survive The Island on Steam (Action, RPG, Sandbox, Action RPG, and 3D): closest matches first, and among equally close ones the better-known games.

Once Human
Shared: Action · Free to Play · Survival

Rust
Shared: Survival · Sandbox · Building

Enshrouded
Shared: RPG · Survival · Base Building

Warframe
Shared: Action · Action RPG · RPG

ARK: Survival Ascended
Shared: Survival · Action · Sandbox

Scrap Mechanic
Shared: Sandbox · Building · Survival

Valheim
Shared: Survival · Building · Crafting

ARK: Survival Evolved
Shared: Survival · Action · Building

Black Myth: Wukong
Shared: Action · Action RPG · RPG

Terraria
Shared: Sandbox · Survival · Building

Kenshi
Shared: Sandbox · RPG · Survival

ELDEN RING
Shared: RPG · Action RPG · Third Person

Conan Exiles Enhanced
Shared: Survival · Building · Sandbox

Medieval Dynasty
Shared: Building · Sandbox · Crafting

Core Keeper
Shared: Sandbox · Survival · Action

Wuthering Waves
Shared: Action · RPG · Free to Play

Monster Hunter: World
Shared: Action · RPG · Third Person

Albion Online
Shared: Sandbox · RPG · Free to Play

Last Oasis
Shared: RPG · Action · Survival

Raft
Shared: Survival · Building · Sandbox

Portal Knights
Shared: Sandbox · RPG · Action

Craftopia
Shared: Sandbox · RPG · Survival

The Riftbreaker
Shared: Action RPG · Sandbox · Survival

Project Zomboid
Shared: Sandbox · Survival · Open World