Games like Outpost On Syrinx
Games like Outpost On Syrinx include Satisfactory, The Forest, House Flipper, Terraria, and Slime Rancher. We matched them by the tags players give Outpost On Syrinx on Steam (Exploration, Sandbox, Immersive Sim, Building, and Crafting): closest matches first, and among equally close ones the better-known games.

Satisfactory
Shared: Base Building · Crafting · Building

The Forest
Shared: Crafting · Building · Exploration

House Flipper
Shared: Building · Sandbox · Simulation

Terraria
Shared: Sandbox · Exploration · Crafting

Slime Rancher
Shared: Exploration · Sandbox · First-Person

Sons Of The Forest
Shared: Base Building · Crafting · Building

The Long Dark
Shared: Exploration · Sandbox · First-Person

Stormworks: Build and Rescue
Shared: Sandbox · Building · Immersive Sim

Garry's Mod
Shared: Sandbox · Building · First-Person

Scrap Mechanic
Shared: Sandbox · Building · Crafting

PC Building Simulator
Shared: Immersive Sim · Building · Sandbox

Subnautica
Shared: Exploration · Crafting · Base Building

Abiotic Factor
Shared: Exploration · Crafting · Base Building

Medieval Dynasty
Shared: Building · Crafting · Sandbox

The Planet Crafter
Shared: Base Building · Building · Crafting

Raft
Shared: Crafting · Building · Base Building

No Man's Sky
Shared: Exploration · Sandbox · Sci-fi

ASTRONEER
Shared: Exploration · Sandbox · Base Building

Dune: Awakening
Shared: Exploration · Sandbox · Base Building

Volcanoids
Shared: Exploration · Crafting · Sandbox

Valheim
Shared: Building · Exploration · Crafting

Rust
Shared: Crafting · Building · Sandbox

The Last Caretaker
Shared: Crafting · Sandbox · Base Building

Core Keeper
Shared: Exploration · Sandbox · Crafting