Games like Sunless Sea - Zubmariner
Games like Sunless Sea - Zubmariner include SUNLESS SEA, Sunless Skies: Sovereign Edition, Fallout 4, Don't Starve, and Clair Obscur: Expedition 33. We matched them by the tags players give Sunless Sea - Zubmariner on Steam (Indie, Adventure, RPG, Lovecraftian, and Exploration): closest matches first, and among equally close ones the better-known games.

SUNLESS SEA
Shared: Lovecraftian · Exploration · Adventure

Sunless Skies: Sovereign Edition
Shared: Lovecraftian · RPG · Exploration

Fallout 4
Shared: RPG · Adventure · Exploration

Don't Starve
Shared: Adventure · Indie · Survival

Clair Obscur: Expedition 33
Shared: RPG · Singleplayer · Adventure

DREDGE
Shared: Exploration · Lovecraftian · Adventure

The Witcher 3: Wild Hunt — Remastered
Shared: RPG · Adventure · Singleplayer

FAR: Lone Sails
Shared: Adventure · Indie · Exploration

Hollow Knight: Silksong
Shared: Indie · Singleplayer · Exploration

Firewatch
Shared: Adventure · Indie · Singleplayer

Fallout: New Vegas
Shared: RPG · Singleplayer · Exploration

Hogwarts Legacy
Shared: Adventure · RPG · Singleplayer

OneShot
Shared: Indie · Adventure · Singleplayer

S.T.A.L.K.E.R. 2: Heart of Chornobyl - Standard Edition
Shared: Singleplayer · Survival · RPG

Look Outside
Shared: RPG · Lovecraftian · Adventure

Hollow Knight
Shared: Indie · Singleplayer · Exploration

To the Moon
Shared: Indie · Adventure · Singleplayer

Terraria
Shared: Adventure · Survival · Exploration

The Long Dark
Shared: Exploration · Survival · Adventure

Outer Wilds
Shared: Exploration · Adventure · Indie

Hyper Light Drifter
Shared: Indie · Adventure · RPG

Cairn
Shared: Indie · Adventure · Exploration

Impostor Factory
Shared: Adventure · RPG · Singleplayer

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