Games like HexoJago
Games like HexoJago include Black Desert, Mount & Blade II: Bannerlord, Terraria, Mortal Online 2, and Hogwarts Legacy. We matched them by the tags players give HexoJago on Steam (Exploration, Sandbox, Action-Adventure, Character Customization, and RPG): closest matches first, and among equally close ones the better-known games.

Black Desert
Shared: Sandbox · Exploration · PvP

Mount & Blade II: Bannerlord
Shared: Sandbox · Strategy · RPG

Terraria
Shared: Sandbox · Exploration · PvP

Mortal Online 2
Shared: Sandbox · PvP · Exploration

Hogwarts Legacy
Shared: Exploration · RPG · Character Customization

Totally Accurate Battle Simulator
Shared: Sandbox · Strategy · Funny

Where Winds Meet
Shared: Character Customization · Action-Adventure · PvP

Sands of Salzaar
Shared: RPG · Sandbox · Strategy

Mount & Blade: Warband
Shared: Sandbox · RPG · Strategy

Starfield
Shared: Exploration · RPG · Character Customization

Fallout: New Vegas
Shared: RPG · Exploration · Moddable

Fallout 4
Shared: Exploration · RPG · Sandbox

The Elder Scrolls Online - Standard Edition
Shared: RPG · Exploration · PvP

The Elder Scrolls IV: Oblivion Remastered
Shared: RPG · Exploration · Character Customization

The Elder Scrolls IV: Oblivion® Game of the Year Edition (2009)
Shared: RPG · Exploration · Character Customization

Rust
Shared: PvP · Sandbox · Crafting

Once Human
Shared: Exploration · Action · RPG

Crimson Desert Enhanced
Shared: Exploration · Action · Action-Adventure

Assassin's Creed® Odyssey
Shared: Action-Adventure · Exploration · RPG

Farever
Shared: RPG · Action-Adventure · Exploration

SPORE™
Shared: Sandbox · Exploration · RPG

Don't Starve Together
Shared: Sandbox · PvP · RPG

Pax Dei
Shared: Sandbox · Exploration · PvP

Disney Dreamlight Valley
Shared: Exploration · Character Customization · Sandbox