Games like Survival Project: Island
Games like Survival Project: Island include The Long Dark, Terraria, Don't Starve, The Forest, and Subnautica. We matched them by the tags players give Survival Project: Island on Steam (Survival, Simulation, Exploration, Life Sim, and Crafting): closest matches first, and among equally close ones the better-known games.

The Long Dark
Shared: Survival · Exploration · Singleplayer

Terraria
Shared: Survival · 2D · Crafting

Don't Starve
Shared: Survival · Crafting · Singleplayer

The Forest
Shared: Survival · Crafting · Exploration

Subnautica
Shared: Survival · Exploration · Crafting

Potion Craft: Alchemist Simulator
Shared: Simulation · Crafting · Singleplayer

My Time at Portia
Shared: Life Sim · Simulation · Crafting

Ancestors: The Humankind Odyssey
Shared: Survival · Exploration · Simulation

Oxygen Not Included
Shared: Survival · Singleplayer · Simulation

This War of Mine
Shared: Survival · Simulation · Singleplayer

Stranded Deep
Shared: Survival · Crafting · Exploration

Core Keeper
Shared: Survival · Exploration · Crafting

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

Bellwright
Shared: Survival · Crafting · Simulation

Stardew Valley
Shared: Life Sim · Simulation · Crafting

The Escapists
Shared: Crafting · Simulation · 2D

Green Hell
Shared: Survival · Crafting · Singleplayer

Sons Of The Forest
Shared: Survival · Crafting · Exploration

Survival: Fountain of Youth
Shared: Survival · Exploration · Simulation

Forever Skies
Shared: Survival · Exploration · Singleplayer

Winter Burrow
Shared: Exploration · Survival · Crafting

The Last Caretaker
Shared: Survival · Crafting · Singleplayer

Dune: Awakening
Shared: Survival · Exploration · Crafting

Subnautica: Below Zero
Shared: Survival · Exploration · Singleplayer