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Mythos, Book One

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App ID 3213410
App Type Game
Developer
Publisher Nine of Swords Studios
Franchise Mythos
Supported Systems Windows macOS Linux
Technologies PyGame Engine, RenPy Engine
Last Changenumber 30265904
Last Record Update 26 July 2025 – 18:15:26 UTC ()
Release Date 17 June 2025 – 20:17:45 UTC ()
❓ 76.37%
38 reviews
3
In-Game

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.

Steam price history

Special Promotion, offer ends 4 August 2025 – 17:00:00 UTC
Current Price $9.87 at -24%
Lowest Recorded Price $9.87 at -24% 26 July 2025
Currency Current Price Converted Price Lowest Recorded Price
U.S. Dollar $9.87 at -24% $9.87 $9.87 $9.87 at -24%
Russian Ruble 372 ₽ at -24% $4.57 -53.61% $4.57 372 ₽ at -24%
South Asia - USD $4.93 at -24% $4.93 -50.05% $4.93 $4.93 at -24%
Kazakhstani Tenge 2736₸ at -24% $5.03 -49.03% $5.03 2736₸ at -24%
Ukrainian Hryvnia 216₴ at -24% $5.17 -47.60% $5.17 216₴ at -24%
Vietnamese Dong 137000₫ at -24% $5.22 -47.03% $5.22 137000₫ at -24%
Indian Rupee ₹ 463 at -24% $5.28 -46.41% $5.28 ₹ 463 at -24%
Indonesian Rupiah Rp 87399 at -24% $5.31 -46.17% $5.31 Rp 87399 at -24%
South African Rand R 96.52 at -24% $5.38 -45.43% $5.38 R 96.52 at -24%
LATAM - U.S. Dollar $5.54 at -24% $5.54 -43.87% $5.54 $5.54 at -24%
MENA - U.S. Dollar $5.54 at -24% $5.54 -43.87% $5.54 $5.54 at -24%
Philippine Peso ₱322.24 at -24% $5.56 -43.57% $5.56 ₱322.24 at -24%
CIS - U.S. Dollar $5.69 at -24% $5.69 -42.35% $5.69 $5.69 at -24%
Brazilian Real R$ 31,91 at -24% $5.69 -42.28% $5.69 R$ 31,91 at -24%
Chilean Peso CLP$ 5548 at -24% $5.75 -41.74% $5.75 CLP$ 5548 at -24%
Saudi Riyal 21.85 SR at -24% $5.82 -40.99% $5.82 21.85 SR at -24%
Colombian Peso COL$ 25080 at -24% $6.00 -39.21% $6.00 COL$ 25080 at -24%
Taiwan Dollar NT$ 180 at -24% $6.05 -38.66% $6.05 NT$ 180 at -24%
Kuwaiti Dinar 1.86 KD at -24% $6.08 -38.37% $6.08 1.86 KD at -24%
Malaysian Ringgit RM25.84 at -24% $6.10 -38.17% $6.10 RM25.84 at -24%
Peruvian Sol S/.22.42 at -24% $6.31 -36.06% $6.31 S/.22.42 at -24%
Mexican Peso Mex$ 120.07 at -24% $6.38 -35.27% $6.38 Mex$ 120.07 at -24%
Thai Baht ฿209.00 at -24% $6.40 -35.12% $6.40 ฿209.00 at -24%
Qatari Riyal 23.55 QR at -24% $6.46 -34.46% $6.46 23.55 QR at -24%
Uruguayan Peso $U303 at -24% $7.55 -23.45% $7.55 $U303 at -24%
Singapore Dollar S$9.88 at -24% $7.64 -22.54% $7.64 S$9.88 at -24%
U.A.E. Dirham 28.12 AED at -24% $7.65 -22.43% $7.65 28.12 AED at -24%
Japanese Yen ¥ 1140 at -24% $7.66 -22.38% $7.66 ¥ 1140 at -24%
South Korean Won ₩ 11020 at -24% $7.92 -19.70% $7.92 ₩ 11020 at -24%
Hong Kong Dollar HK$ 63.08 at -24% $8.03 -18.58% $8.03 HK$ 63.08 at -24%
New Zealand Dollar NZ$ 14.43 at -24% $8.54 -13.41% $8.54 NZ$ 14.43 at -24%
Costa Rican Colon ₡4410 at -24% $8.71 -11.66% $8.71 ₡4410 at -24%
Australian Dollar A$ 14.40 at -24% $9.30 -5.71% $9.30 A$ 14.40 at -24%
Canadian Dollar CDN$ 12.91 at -24% $9.35 -5.26% $9.35 CDN$ 12.91 at -24%
Norwegian Krone 110,20 kr at -24% $10.74 +8.84% $10.74 110,20 kr at -24%
Israeli New Shekel ₪36.44 at -24% $10.79 +9.33% $10.79 ₪36.44 at -24%
British Pound £8.35 at -24% $11.09 +12.44% $11.09 £8.35 at -24%
Euro 9,72€ at -24% $11.16 +13.07% $11.16 9,72€ at -24%
Polish Zloty 45,59zł at -24% $12.26 +24.22% $12.26 45,59zł at -24%
Swiss Franc CHF 11.02 at -24% $13.60 +37.84% $13.60 CHF 11.02 at -24%
Chinese Yuan N/A N/A N/A
Valve suggested prices are shown on package pages.

Price history

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View lowest recorded prices on Steam store pages by using our browser extension.

Additional Information

Developer Nine of Swords Studios
community_visible_stats Yes
ReleaseState released
Publisher Nine of Swords Studios
Store Release Date 17 June 2025 – 20:17:48 UTC ()
osarch 64
community_hub_visible Yes
Social Media https://bsky.app/profile/9ofswords.bsky.social
https://discord.gg/skvd2sP
https://www.youtube.com/@nineoswords2993
Primary Genre RPG (3)
Store Genres Indie (23), RPG (3)
Steam Release Date 17 June 2025 – 20:17:45 UTC ()
Store Asset Modification Time 26 July 2025 – 18:15:16 UTC () (1753553716)
library_assets
library_capsuleen
library_heroen
library_logoen
library_headeren
logo_position ↴
pinned_positionCenterCenter
width_pct89.52234020627719
height_pct100
osextended macos64,macosapplesilicon
review_score 7
review_percentage 89
Detected Technologies (?) PyGame Engine, RenPy Engine
Steam Deck Compatibility
  • Steam Deck:
  • This game sometimes shows mouse, keyboard, or non-Steam-Deck controller icons
  • Some in-game text is small and may be difficult to read
  • All functionality is accessible when using the default controller configuration
  • This game's default graphics configuration performs well on Steam Deck
  •  
  • SteamOS:
  • This game runs successfully on SteamOS
  •  
  • category: Playable
  • steamos_compatibility: Compatible
  • test_timestamp: 18 July 2025 – 00:00:00 UTC
  • tested_build_id: 18902646
  • configuration:
    supported_inputother
    requires_manual_keyboard_invoke0
    requires_non_controller_launcher_nav0
    primary_player_is_controller_slot_00
    non_deck_display_glyphs1
    small_text1
    requires_internet_for_setup0
    requires_internet_for_singleplayer0
    recommended_runtimenative
    requires_h2640
    requires_voice_files0
    gamescope_frame_limiter_not_supported0
    hdr_support0
restricted_countries CN,DE
China, Germany
Content Descriptors Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5)
controllertagwizard Yes
First seen on SteamDB 3 September 2024 – 21:01:12 UTC (), in changelist #25063786
Content Descriptors (Including DLC) Some Nudity or Sexual Content (1), Adult Only Sexual Content (3), Frequent Nudity or Sexual Content (4), General Mature Content (5)

Supported Languages

2 Languages Interface Full Audio Subtitles Achievements
English Yes Yes Yes
French Yes Yes Yes

Assets

Load all asset images
clienticon 64a846b6a5518fdf4f2c0cdf893785d60bf5dce8
clienttga db8f979b588d8dd4a00baf34979c0dca002da6b8
icon b5fe0551df4d7c9a2774465572d1e438c64c987c
small_capsule
english7a24b2efe4fe2d4d389e91b58a8e025c857ae378/capsule_231x87.jpg
header_image
englishheader.jpg
library_assets_full
library_capsule ↴
image/englishlibrary_600x900.jpg
image2x/englishlibrary_600x900_2x.jpg
library_hero ↴
image/englishlibrary_hero.jpg
image2x/englishlibrary_hero_2x.jpg
library_logo ↴
image/englishlogo.png
image2x/englishlogo_2x.png
logo_position/pinned_positionCenterCenter
logo_position/width_pct89.52234020627719
logo_position/height_pct100
library_header ↴
image/englishlibrary_header.jpg
image2x/englishlibrary_header_2x.jpg
Assets
main_capsuleeb94ddae2dd93e3b6c3dd5813e4c45a4e00cc7fe/capsule_616x353.jpg
small_capsule7a24b2efe4fe2d4d389e91b58a8e025c857ae378/capsule_231x87.jpg
headerheader.jpg
hero_capsule342ab8a332ac08ee1615a391cd929b85fff55847/hero_capsule.jpg
hero_capsule_2x342ab8a332ac08ee1615a391cd929b85fff55847/hero_capsule_2x.jpg
library_capsulelibrary_600x900.jpg
library_capsule_2xlibrary_600x900_2x.jpg
library_herolibrary_hero.jpg
library_hero_2xlibrary_hero_2x.jpg
community_iconb5fe0551df4d7c9a2774465572d1e438c64c987c.jpg
page_background_pathapp/3213410
timestamp26 July 2025 – 18:15:24 UTC
Trailers
257052819 ↴
trailer_nameMythos, Book One Trailer
trailer_category3
trailer_480p/video/webm257052819/movie480_vp9.webm
trailer_480p/video/mp4257052819/movie480.mp4
trailer_max/video/webm257052819/movie_max_vp9.webm
trailer_max/video/mp4257052819/movie_max.mp4
microtrailer/video/webm3213410/751762/2bcba1969cc07bfd651e983b7167440c378198aa/1750824806/microtrailer.webm
microtrailer/video/mp43213410/751762/2bcba1969cc07bfd651e983b7167440c378198aa/1750824806/microtrailer.mp4
screenshot_medium257052819/movie.293x165.jpg
screenshot_full257052819/movie_full.jpg
trailer_base_id751762
all_agesfalse
is_highlighttrue
timestamp1726270381
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