Games like Albion Online
Games like Albion Online include Destiny 2, Trove, Rust, Once Human, and Neverwinter. We matched them by the tags players give Albion Online on Steam (MMORPG, Free to Play, Open World, Massively Multiplayer, and Sandbox): closest matches first, and among equally close ones the better-known games.

Destiny 2
Shared: Free to Play · Open World · MMORPG

Trove
Shared: MMORPG · Free to Play · Open World

Rust
Shared: Open World · Multiplayer · Crafting

Once Human
Shared: Free to Play · Open World · Multiplayer

Neverwinter
Shared: MMORPG · Free to Play · Massively Multiplayer

The Elder Scrolls Online - Standard Edition
Shared: MMORPG · Open World · RPG

STALZONE
Shared: MMORPG · Open World · Free to Play

Mortal Online
Shared: Free to Play · Open World · Massively Multiplayer

Where Winds Meet
Shared: Free to Play · Open World · Multiplayer

Star Trek Online
Shared: Free to Play · MMORPG · Massively Multiplayer

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

FINAL FANTASY XIV Online
Shared: MMORPG · Massively Multiplayer · RPG

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

Project Zomboid
Shared: Open World · Sandbox · Multiplayer

Pax Dei
Shared: MMORPG · Open World · Sandbox

Last Oasis
Shared: Massively Multiplayer · Open World · RPG

Conan Exiles Enhanced
Shared: Open World · Survival · Sandbox

Terraria
Shared: Sandbox · Multiplayer · Survival

Guild Wars 2®
Shared: MMORPG · Free to Play · RPG

Gloria Victis: Medieval MMORPG
Shared: MMORPG · Open World · Massively Multiplayer

Dark and Light
Shared: Open World · Massively Multiplayer · Sandbox

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

Path of Exile
Shared: Free to Play · MMORPG · Multiplayer

The Quinfall
Shared: MMORPG · Open World · Massively Multiplayer