Games like Forsaken Isle
Games like Forsaken Isle include Terraria, Forager, Rust, Starbound, and The Forest. We matched them by the tags players give Forsaken Isle on Steam (Survival, Adventure, Pixel Graphics, Crafting, and Action): closest matches first, and among equally close ones the better-known games.

Terraria
Shared: Survival · Pixel Graphics · Adventure

Forager
Shared: Survival · Pixel Graphics · Crafting

Rust
Shared: Survival · Crafting · Adventure

Starbound
Shared: Survival · Adventure · Crafting

The Forest
Shared: Survival · Adventure · Crafting

Graveyard Keeper
Shared: Pixel Graphics · Crafting · RPG

The Escapists
Shared: Pixel Graphics · Crafting · Survival

ARK: Survival Evolved
Shared: Survival · Crafting · Adventure

Necesse
Shared: Pixel Graphics · Survival · Adventure

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

Don't Starve
Shared: Survival · Adventure · Crafting

Portal Knights
Shared: Adventure · Survival · Crafting

ARK: Survival Ascended
Shared: Survival · Crafting · Adventure

Last Oasis
Shared: Survival · Adventure · Action

Core Keeper
Shared: Survival · Pixel Graphics · Crafting

Stardew Valley
Shared: Pixel Graphics · RPG · Crafting

Raft
Shared: Survival · Crafting · Adventure

Palworld
Shared: Survival · Crafting · Adventure

Conan Exiles Enhanced
Shared: Survival · Crafting · Adventure

PixARK
Shared: Survival · Adventure · Pixel Graphics

Scrap Mechanic
Shared: Survival · Crafting · Sandbox

Craftopia
Shared: Survival · Crafting · Adventure

DAVE THE DIVER
Shared: Pixel Graphics · Adventure · Casual

Romestead
Shared: Adventure · Crafting · Survival