INTRODUCING: Blood Pact Premium Edition! Learn more here.

NEW: An experimental executable version for Windows is now available for download! Scroll to the bottom for more information.
Note: Best played fullscreen in 1080p.

. . .

Valens weaves between moments of pure sexuality and raw self-doubt with the expertise of one who’s been there before, one who swims in the waters of self-esteem struggles. [...] Blood Pact is more than just a sexy fantasy: it’s a sexy fantasy where you are wanted. You are loved. You are enough. — Kate Gray
Blood Pact is a wonderful, sexy merger of some spectacular and evocative artwork and writing. Shameless and raw but fantastical and darkly comforting. Three thumbs up. — ThirtyHelens
I love a story about a girl making all the right choices. When a demon offers you the gift of sexual servitude there's only one correct answer. I would read anything by Ana Valens. Her writing has a 100% success rate at making me horny. — Carta Monir

Ana achieves to not only continuously produce immensely positive conversations about trans bodies and sexuality, but knocks it out of the park with her accurate portrayal of BDSM. I'm not an erotica fan, but Ana might just make me one. Aiden Strawhun
Blood Pact is an arousing and moving story, exploring an occult version of the sexual fantasy so many trans folks and survivors of trauma hold close to their heart: fucking without fear or self-judgment. If you've ever desperately wished you could just get out of your head and enjoy sex, you may want to summon a demon after reading this. — Alex Dalbey

. . .

Blood Pact is a queer erotica Twine series about a trans girl named Alexa who accidentally unleashes Felanya, a domineering trans succubus. The story follows their exploits as Alexa enters into a D/s relationship with Felanya and embraces their sapphic occult Blood Pact.

Inspired by such works as Nadia Nova’s housewarming gift and Instar Books’ Nerve Endings, Blood Pact features an ongoing story arc with periodic installments. The first part, which is built entirely in Twine, introduces readers to the main characters and their voracious sexual appetites. With writing by Ana Valens, illustrations by Callie G, and narration by Nikatine, Blood Pact is an erotic love letter to Twine's hot, messy, and queer roots.

As of Dec. 23, 2019, 15% of all donations go to the Transgender Law Center per Nikatine's request!


  • Over 8,000 words’ worth of kinky queer trans girl smut
  • Six illustrations, including four depicting Blood Pact’s hottest sex scenes
  • Full narration complete with voice effects
  • Tentacle play, bondage, degradation, and becoming fluid-bound with a hot buff dyke goddess (classic lesbian stuff!)
  • Plenty of aftercare, cuddling, and quivering
  • It's free! Pay what you want, including $0 for an unlimited time!
  • Every dollar counts: 15% of every donation goes to the SWOP BK COVID relief fund for sex workers

About the Creators

Blood Pact was written and programmed by Ana Valens. Valens is a trans fiction writer known for her chapbook Bell, “1 AM” from the Lambda Literary-nominated collection The Resilience Anthology, and the trans erotica Twine Little Death. She also works as an adult content reporter for the Daily Dot, with work published in Vice, Rolling Stone’s Glixel, and She is based in Brooklyn, New York.

The game’s illustrations were created by Callie G., who previously worked on Bell with Valens. She is an illustrator who has contributed work to a variety of projects. She is also the proprietress of Postcard Paradise. You can see her recent work or get in touch with her via Twitter.

Narration is courtesy of Nikatine. She is a full-time content creator, founder of Transmission Gaming, and a member of Twitch's Ambassadors program. When she's not lending her voice to audiobooks, she's portraying characters in various roleplay scenarios on her Twitch stream. You can check out her content on TwitterFacebook, and Instagram.

Release Date

June 21, 2019

Premium version: TBA

Get In Touch

For updates, follow Blood Pact's official Twitter, @BloodPactTwine.

For press inquiries, contact Ana Valens: or @acvalens on Twitter.

Executable Notes

The EXE build is only available for Windows and has not been tested with any compatibility layers. It is experimental and not intended as a final version. You may stumble across bugs, stability issues, or other errors. Feel free to leave a comment below or contact Ana over email with any bug reports.

To use: run "Blood Pact v2.0.exe" in the Windows directory. All save features should work as intended. The main menu features a "Quit" option which will close the game window immediately. If you wish to stop the game mid-story, press Alt + F4 to close the app.

PlatformsWindows, HTML5
Release date Jun 21, 2019
Rated 4.2 out of 5 stars
(54 total ratings)
AuthorAna Valens
GenreInteractive Fiction, Visual Novel
Made, Twine
TagsErotic, Fantasy, Gay, Lesbian, LGBT, Story Rich, Transgender, Twine
Average sessionAbout an hour
AccessibilityOne button
LinksHomepage, Twitter, Author, Illustrator, Narrator


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Click download now to get access to the following files:

Blood Pact v2 385 MB

Development log


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I downloaded the blood pact v2 exe and it doesn't seem to want to start for me. Am I missing something to get it to startup?


Hey there! Sorry to hear you’re having trouble. What’s your OS and user account? Did you try running as administrator?

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Trying to play, but only get fatal errors (but i get these for all in browser games nowadays). Would be nice to have the opportunity to download the file and run it local.

Perhaps another browser could work, but i don't want the work to make yet another browser optimated for privacy and running a not for privacy optimated browser is not my thing.


Hi Harlekin! Which browser are you using? I know TOR and Brave have issues with playing Twine games. In the meantime, I have an experimental .exe build I could send to you -- let me know the best way to reach you, and I'll do just that.

I use firefox with quite some plugins (just to name a few: noscript, facebook container, blur, disconnect, cookie autodelete, duckduckgo privacy essentials). I know some sites require offsite scripts which i block (especially everything i can link to google or facebook) what may make some sites quite unusable (i don't miss them though), others use cookies which get deleted the second i leave the domain (or not even be created when it gets identified as tracking cookie) and there are other potential problems.


Intense, unabashedly horny, but also strangely gentle and sweet. Nothing better than seeing a story of two trans girls loving and enjoying each other, it made me feel seen.

Not many suggestions on how to improve this, other than to maybe add page numbers to keep track of one's progress through the story. But anyhow, this was a deliciously delightful story, and I can't wait to see more from you!

I created a throwaway account just to post here. I got here because your story was showcased in Kotaku by Kate Gray:

Also, if it matters, I am a married white straight male.


First things first: your story is delicious!

The setup in the library, getting me to know Alexa's character, is well done. It was cut a little short, and I wanted to know more about her, with more flavor about her personality. She almost passes as a generic character (maybe that was the intention, to make her a placeholder for the reader to project herself). But considering that knowing Alexa intimately was not the focus of the story, the setup didn't overstay its welcome and left me wanting for more, which is always a good sign.

On the other hand, the basement scene in the dark felt a little too rushed and didn't create enough engagement. It was Alexa entering the unknown, but it failed to build the feelings of fear, wonder and anxiety in the reader. Also, Emily is mentioned but is never reincorporated in the story (e.g.: Alexa realizing that the memory of Emily is slowly fading in the end), so it feels like a loose end. There are moments that the rule of "show, don't tell" is broken, that could've been better explored to increase the tension. An example is: "Alexa wondered if she had lost her sight. But she hadn’t."

Anyhow, it's the scenes with the goddess and the sex that really shine. They are very well written and got me really engaged! Every flavor missing from Alexa's personality is presented with gusto in Felanya. Her character being able to flow naturally from a jerk dom to a caring lover and back, while always displaying confidence and alphaness, was remarkably well transmitted. The intense contrast of Felanya and Alexa's personalities being portrayed, while at the same time they both identified with each other similarities, was top-notch and masterfully executed.

Here, the pacing of the story, the interplay between sex tension and dialog tension, growing and shrinking like an ever-rising wave, was spot on: the undressing, then reassurance; neck biting, then situation-questioning... on and on until it reaches the climax. Or at least I thought it was the climax: the aftercare in the middle of the scene took me completely by surprise... just for the action to pick up again, leading to the true climax, and ending the story decisively, leaving me yearning for more.

Even the no-excuse and slightly abrupt ending felt like being led by the no-bs attitude of Felanya, instead of being dragged down by the needs of explanations and whims of Alexa. Enticing, as it should be, giving space to my mind to wonder what's going to happen next.



Hi, is there a standalone version? i can't seem to run it in chrome on my mac :(

Hi Dioinecail! Thanks for reaching out. I'm experimenting with a standalone executable at the moment, although I'm still testing the HTML -> .exe conversion process. In the meantime, a few troubleshooting suggestions for playing the game online:

1.) Make sure you have Java running and installed.

2.) Try reopening this webpage through incognito mode. Add-ons may be causing issues with running the Twine in the browser.

3.) Try an alternate browser, such as Firefox or Opera.

Let me know if you continue to have problems, and if so, I can send you the alpha version of the executable.

Hi, i was able to check out the game in Safari, although i was at work so i will dedicate a proper dive into it some more private time :) 


What a great story! I'm definitely looking forward to the future chapters!

Thank you so, so much!! <3


Wow, I loved the story. I usually don't publicy put comments on NSFW works because I'm a bit shy at times, but I need to put a first comment in there! We need more trans-friendly 18+ games! Also your writing and art is stunning, and thank you so much for the inclusion of after care, that touched me a lot. ;-;


Hi there Valentin!! Thank you so, so much for such a wonderful and positive comment <3. It means the world to me. Callie and I can't wait to continue Blood Pact. Keep an eye out during the next couple months, too, as BP isn't the only trans erotica story I'm working on! ;)

-- Ana