NSFW

Steam game

Mythos, Book One

An "adult" murder mystery urban fantasy comedy visual novel! Lisa Harrison (your ex-girlfriend) is dead, and you have a feeling there's more to it than meets the eye. As you search for answers surrounding Lisa's death, you discover a hidden magical world lurks within modern-day Baltimore.

$12.99 June 17, 2025

By Nine of Swords Studios

Windows macOS Linux
View on Steam
Mythos, Book One - Nine of Swords Studios. Popular. Released June 17, 2025
Screenshot of Mythos, Book One gameplay showing in-action mechanics Screenshot 2 of Mythos, Book One - additional gameplay view Screenshot 3 of Mythos, Book One - more gameplay footage Screenshot 4 of Mythos, Book One - final gameplay screenshot

Overview

About this game

You follow the story of the main character – which you may choose to be male or female – as they learn of the mysterious death of their ex-girlfriend, Lisa Harrison. Soon, the main character finds themselves fumbling through the hidden society of supernatural beings that lurk in plain sight. Some are very much like the legends suggest, while others couldn’t be further from what one would expect.

Will our hero piece together the puzzle behind the murder of Lisa Harrison, or will they be consumed by new attention they’ve brought upon themselves?

Solving a murder while also discovering that there's a whole supernatural world out there is quite a feat, but thankfully you'll have some help! A rowdy country-girl childhood friend, a tricky fae, and even a police detective are amongst your allies as you unravel the threads.

Of course... who's to say that these accomplices aren't also suspects?

Why is the word "adult" in quotes, up there?

Simply put, "Mythos, Book One" does have some sexual content in it. Five lovely ladies are helping you with your investigation, and as you investigate Lisa's death, you may find yourself becoming romantically entangled with one (or all!) of them. If that happens, things can get very spicy, very quickly. However, you can also choose to completely forgo any romantic encounters at all, choosing to instead focus only on the detective work. Whichever you pick, the core story of the murder investigation will be unaffected by whatever amorous side quests you choose to partake in. Mythos is, first and foremost, a mystery visual novel. There's just some naughty bits thrown in if that's the sort of thing you're into.

And for those of you who want the romance without the naughtiness (or if you plan to stream the game), there's a toggle that lets you skip right past any of the NSFW bits, even if you do choose to get closer to one of the ladies.

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