Games like Marry a Deep One: Innsmouth Simulator
Games like Marry a Deep One: Innsmouth Simulator include Suzerain, The Life and Suffering of Sir Brante, Dagon: by H. P. Lovecraft, The Test, and Slay the Princess — The Pristine Cut. We matched them by the tags players give Marry a Deep One: Innsmouth Simulator on Steam (Simulation, Villain Protagonist, Political Sim, Interactive Fiction, and Lovecraftian): closest matches first, and among equally close ones the better-known games.

Suzerain
Shared: Political Sim · Interactive Fiction · Visual Novel

The Life and Suffering of Sir Brante
Shared: Interactive Fiction · RPG · Story Rich

Dagon: by H. P. Lovecraft
Shared: Lovecraftian · Horror · Visual Novel

The Test
Shared: Simulation · Story Rich · Choose Your Own Adventure

Slay the Princess — The Pristine Cut
Shared: Visual Novel · Horror · Interactive Fiction

Growing Up
Shared: Simulation · Life Sim · RPG

Not For Broadcast
Shared: Simulation · Adventure · Political Sim

Volcano Princess
Shared: Life Sim · Simulation · RPG

Tiny Bunny
Shared: Visual Novel · Horror · Story Rich

鬼谷八荒 Tale of Immortal
Shared: Simulation · RPG · Adventure

Orwell: Keeping an Eye On You
Shared: Simulation · Political Sim · Interactive Fiction

Beholder
Shared: Political Sim · Simulation · Atmospheric

I Was a Teenage Exocolonist
Shared: Life Sim · RPG · Visual Novel

Magical Princess
Shared: Simulation · Life Sim · RPG

Love is All Around: Echoes of Yesterday
Shared: Simulation · RPG · Interactive Fiction

The Test: Hypothesis Rising
Shared: Simulation · Visual Novel · Horror

DREDGE
Shared: Lovecraftian · Adventure · Simulation

The Life and Suffering of Prince Jerian
Shared: Life Sim · RPG · Political Sim

Yog-Sothoth’s Yard
Shared: Lovecraftian · Simulation · Horror

PARANORMASIGHT: The Mermaid's Curse
Shared: Simulation · RPG · Adventure

Scarlet Hollow
Shared: Visual Novel · Interactive Fiction · Horror

Death and Taxes
Shared: Simulation · Story Rich · Interactive Fiction

Killer Frequency
Shared: Simulation · Interactive Fiction · Adventure

Roadwarden
Shared: RPG · Interactive Fiction · Adventure