Games like Open Sorcery: Sea++
Games like Open Sorcery: Sea++ include Roadwarden, The Life and Suffering of Sir Brante, Suzerain, Far Away, and Road to Empress I. We matched them by the tags players give Open Sorcery: Sea++ on Steam (RPG, Indie, Adventure, Text-Based, and Interactive Fiction): closest matches first, and among equally close ones the better-known games.

Roadwarden
Shared: RPG · Adventure · Indie

The Life and Suffering of Sir Brante
Shared: RPG · Choices Matter · Interactive Fiction

Suzerain
Shared: Interactive Fiction · Choices Matter · RPG

Far Away
Shared: Choices Matter · Singleplayer · Female Protagonist

Road to Empress I
Shared: RPG · Choices Matter · Female Protagonist

Choice of Robots
Shared: Text-Based · Indie · RPG

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

To the Moon
Shared: Indie · Adventure · RPG

The Cosmic Wheel Sisterhood
Shared: Female Protagonist · Interactive Fiction · Magic

Undertale
Shared: RPG · Choices Matter · Indie

Hogwarts Legacy
Shared: RPG · Adventure · Magic

Road to Empress Ⅱ
Shared: Adventure · Choices Matter · RPG

Open Sorcery
Shared: RPG · Indie · Adventure

Mirror 2: Project X
Shared: Interactive Fiction · Female Protagonist · RPG

Sorcery! Parts 1 and 2
Shared: RPG · Adventure · Indie

Love Is All Around
Shared: Singleplayer · Choices Matter · Interactive Fiction

Legend of Mortal
Shared: RPG · Choices Matter · Singleplayer

Late Shift
Shared: Choices Matter · Interactive Fiction · Adventure

Tales of the Black Forest
Shared: RPG · Indie · Adventure

WILL: A Wonderful World / WILL:美好世界
Shared: RPG · Adventure · Indie

Volcano Princess
Shared: RPG · Choices Matter · Female Protagonist

Yes, Your Grace
Shared: Indie · RPG · Choices Matter

Hollow Knight: Silksong
Shared: Indie · Adventure · Singleplayer

Sweet Home
Shared: RPG · Female Protagonist · Interactive Fiction