Games like Omega Crafter
Games like Omega Crafter include Rust, Palworld, Don't Starve Together, ARK: Survival Evolved, and Terraria. We matched them by the tags players give Omega Crafter on Steam (Open World Survival Craft, Automation, Multiplayer, City Builder, and Survival): closest matches first, and among equally close ones the better-known games.

Rust
Shared: Multiplayer · Open World Survival Craft · Survival

Palworld
Shared: Open World Survival Craft · Multiplayer · Survival

Don't Starve Together
Shared: Open World Survival Craft · Multiplayer · Survival

ARK: Survival Evolved
Shared: Open World Survival Craft · Multiplayer · Survival

Terraria
Shared: Open World Survival Craft · Multiplayer · Survival

Valheim
Shared: Open World Survival Craft · Survival · Multiplayer

Raft
Shared: Open World Survival Craft · Multiplayer · Survival

Once Human
Shared: Multiplayer · Open World Survival Craft · Survival

Satisfactory
Shared: Automation · Multiplayer · Crafting

Project Zomboid
Shared: Open World Survival Craft · Survival · Multiplayer

The Forest
Shared: Open World Survival Craft · Survival · Crafting

Green Hell
Shared: Open World Survival Craft · Multiplayer · Survival

ASTRONEER
Shared: Open World Survival Craft · Multiplayer · Survival

Grounded
Shared: Multiplayer · Open World Survival Craft · Survival

Conan Exiles Enhanced
Shared: Open World Survival Craft · Survival · Multiplayer

ICARUS
Shared: Open World Survival Craft · Multiplayer · Survival

7 Days to Die
Shared: Multiplayer · Open World Survival Craft · Survival

RuneScape: Dragonwilds
Shared: Open World Survival Craft · Multiplayer · Survival

Craftopia
Shared: Open World Survival Craft · Multiplayer · Survival

Stranded Deep
Shared: Open World Survival Craft · Multiplayer · Survival

Necesse
Shared: Open World Survival Craft · Multiplayer · Survival

Sons Of The Forest
Shared: Multiplayer · Survival · Open World

No Man's Sky
Shared: Open World Survival Craft · Open World · Multiplayer

ARK: Survival Ascended
Shared: Multiplayer · Survival · Open World