Games like Ocean Man
Games like Ocean Man include Slime Rancher, Wartales, Wuthering Waves, Clair Obscur: Expedition 33, and Fallout 4. We matched them by the tags players give Ocean Man on Steam (Adventure, RPG, Turn-Based Strategy, Exploration, and 3D): closest matches first, and among equally close ones the better-known games.

Slime Rancher
Shared: Adventure · Exploration · Cute

Wartales
Shared: RPG · Turn-Based Strategy · Adventure

Wuthering Waves
Shared: RPG · Adventure · Exploration

Clair Obscur: Expedition 33
Shared: RPG · Turn-Based Combat · Exploration

Fallout 4
Shared: RPG · Adventure · Exploration

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

Aniimo
Shared: Adventure · RPG · Exploration

A Short Hike
Shared: Adventure · Exploration · Cute

Hogwarts Legacy
Shared: Adventure · RPG · Exploration

Crimson Desert Enhanced
Shared: Adventure · Exploration · RPG

Tainted Grail: The Fall of Avalon
Shared: RPG · Adventure · Exploration

Fallout: New Vegas
Shared: RPG · Exploration · Adventure

Cassette Beasts
Shared: Adventure · RPG · Exploration

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

The Elder Scrolls IV: Oblivion Remastered
Shared: RPG · Adventure · Exploration

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

NTE: Neverness to Everness
Shared: RPG · Adventure · Exploration

DAVE THE DIVER
Shared: Adventure · Exploration · RPG

ATLYSS
Shared: RPG · Adventure · Cute

Cat Quest
Shared: Adventure · RPG · Cute

Hello Kitty Island Adventure
Shared: Adventure · Cute · Exploration

For The King II
Shared: Adventure · RPG · Turn-Based Strategy

Mewgenics
Shared: Turn-Based Strategy · RPG · Cute

Costume Quest
Shared: Adventure · RPG · Cute