Building 13™ · Fall at the HQ
Come inside. Forget outside for a while.
Come inside. Stay for the harvest.
Step through — the lobby’s warm
Welcome to Building 13™, you're home now
A Petra S.F. universe
Building 13™
Welcome to the building. Music leaks through the walls. Comics move after midnight. Stories hide in the archives. The owners are weird. Pick a door.
Building 13 is an independent creative universe founded by Petra S.F., bringing together original storytelling, comics, books, music, entertainment, games, and merchandise. Petra S.F. is the creator behind this world — and this site, building13hq.com, is its official home.
Welcome home, misfits
About the building
About Building 13.
Building 13 is an independent creative universe founded by Petra S.F., bringing together original storytelling, comics, books, music, entertainment, games, and merchandise. Petra S.F. is the creator behind this world; alongside his creative collaborators he built one roof for stories, comics, books, music, entertainment, and original merchandise.
Every room in this building is a different door: the Storytellers Den for short stories, Channel 13 for broadcasts, the Building 13 Merch Store for books and merch, the Arcade for games, the Building 13 Library for the lore, and the Creator Hub for the community. Building 13 is an independent creator project — not affiliated with any other business that happens to share a similar name.
Choose your room
Open the doors
No endless link list. Every door opens a real room inside Building 13™.
Broadcast Room
Petra's Reaction Room
Petra hits play. The building reacts.
TV Room
Channel 13
Petra's own TV network. Six channels, no remote needed.
Story Room
Storytellers Den
Short stories from inside the building.
Mission Control
Records Room
Building 13 Comix
Landlords
About
Commissary
Building 13 Merch Store
For hire
Creative studio
Make your business look like a movie.
Game Room
Arcade
Petra's own browser games. No quarters needed.
13
Creator Hub
Independent creators under one roof. Find your people.
Lab Room 1
Creator Spotlight
Get your work in front of the building.
Lab Room 2
Local Spotlight
Petra's weekly picks and local love.
Building 13™ TV network
Channel 13.
Six channels. One remote. Every transmission on this set is beamed straight from inside the building — no cable bill, no static on your conscience. Flip to 13.5 for Nerd News and Wrestling, and to 13.6 for the cursed broadcast nobody was supposed to find.
CHANNEL 13POWER
SIGNAL FOUND · DO NOT ADJUST YOUR SET
CHANEL 13.6 broadcasts Building 13 horror-comedy skits. Pick an episode below — new transmissions land here as they drop.
13.1 · Petra Reacts
Petra hits play, the building reacts — the whole playlist, back to back.
13.2 · Storytellers Den
Short-form stories straight from the Den. Flip through the shorts:
13.3 · Music Videos
RUNNIN ON EMPTY — the TikTok music video.
13.4 · West Wolf TV
Drex the West Wolf, live on Twitch. If the screen runs dark, West Wolf is off-air — follow him and catch the next one.
13.5 · Nerd News and Wrestling
Nerd news, rumors, and wrestling facts from inside the building. Flip through the broadcasts:
13.6 · CHANEL 13.6
YOU WEREN’T SUPPOSED TO FIND THIS CHANNEL.
CHANEL 13.6 is Building 13’s cursed television broadcast — horror-comedy skits beamed from somewhere inside the building. A separate stream from the Storytellers Den: the Den tells stories, 13.6 transmits whatever the static dragged in.
Broadcast Room
Petra's Reaction Room
Petra hits play. The building reacts. Watch every transmission right here.
Throw it through the door
Submit to Petra Reacts.
Creators, artists, businesses, and beautiful weirdos: send Petra something worth reacting to.
Open the full Petra Reacts playlist ↗No charge Paid option Paid option Paid option
Free reaction
Free
Submit for consideration.
Reaction + Socials All Week
$10
Reaction plus a week of social support.
Pay by Card ↗Spotlight on the Site
$20
A dedicated Building 13™ site spotlight.
Pay by Card ↗Be A Resident
$30
A paid resident placement inside Building 13™.
Pay by Card ↗Prefer Cash App? It still works as a fallback — Cash App · $petraSF ↗. Card payment above is the main checkout.
Story Room
Storytellers Den.
Pull up a chair. Short stories, strange turns, and transmissions from inside Building 13™. Watch the featured story, listen to the podcast on Spotify, or open the full playlist — then come back for the next transmission.
Rissa's Den debut · First video in the Den
Open on Instagram ↗Lady Rosenrot's first story.
Rissa Rouxxx's first post in the Storytellers Den.
Full archive
Open the playlist ↗Every Den story in one playlist.
Short stories, strange turns, and transmissions — back to back.
Mission Control
Records Room.
WELCOME TO BUILDING 13 — six tracks, 11:59.
Petra S.F. · Out nowOpen in Spotify ↗
Petra S.F. · The Maxi Single
Thanksgiving is Christmas Foreplay
4 songs, 11 min
- Gobble Gobble Mutha Fuckah
- Gobble Gobble Mutha Fucka - Instrumental
- Family Thanksgiving Battle Royal
- Family Thanksgiving Battle Royal - Instrumental
New video
Runnin on Empty.
The official video — Petra S.F. running on empty with a full tank of chaos. Press play and turn it up.
The full Petra S.F. catalog
All the music. One place.
Go beyond the Halloween record. Play Petra S.F. on Spotify and move through the full catalog.
The full catalog, everywhere you stream.
Holiday records, side quests, and the whole vault — stream Petra S.F. on your platform of choice.
Apple Music ↗Building 13 Comix.
Pick a series, choose an issue, and read it page-by-page right here inside Building 13™.
PETRA: Son of the Lightning Reaper
3 issues
Building 13™: The Origin
2 issues
The Unwritten #1: The Thirteenth Room
24-page digital comic · $5 PDF
Choose your way inWattpad transmissions
Building 13 Library.
Incident reports, resident transmissions, lore, and stories from Building 13™ — and you read them right here in the building. Pick a file off the shelf; it opens on the reading stand, word for word as Building13 published it on Wattpad.
Now on the reading stand
Open on Wattpad ↗
Building 13™
This file's chapters are still being moved onto the reading stand. The full file lives on Wattpad — same words, same author.
Reading runs right here in the building — the story stays exactly as authored. Votes, comments, and following Building13 live over on Wattpad.
The shelf — pick a file
Landlords
About.
Only the two names on the deed: Petra S.F. and Lady Rissa.
Owner · Entertainer · Storyteller
Petra S.F.
Boston to the Boot. The unreliable narrator at the center of Building 13™.
Owner · Lady of the house
Lady Rissa
Co-owner of Building 13™ and one of the two names on the deed.
Building 13™ records office
Build a Resident.
Create an original resident ID card, watch it update as you type, and save the finished card as a PNG.
Building 13™ Resident FileID // 13
Unregistered
AKA // Unknown
TypeArtist
Gender / Age— / —
ArchetypeUnclassified
Traits // No traits logged.
Commissary
Building 13 Merch Store.
Organized by collection. Digital products live on the Storyteller’s Den Book Nook (Fourthwall); paperbacks live on Amazon; clothing lives on Always Chase Her; physical CDs live on Kunaki. Browse here; the product button opens the exact checkout listing.
Creative Studio Room · For hire
Graphic Work Studio — spec work.
See how Petra turns a business into a whole visual world, then hire Building 13™ for custom graphics, promotional video, character creation, story development, audio, and more.
Delta Garden Seltzer
Graphic Work Studio spec promo — campaign visuals in motion.
Delta Garden Seltzer
Graphic Work Studio spec promo — another angle on the Delta campaign.
Faygo Rock & Rye
Cinematic spec spot. Day one. Faygo. You know the deal.
Need help building worlds, characters, stories, or videos? Come see what we can create.
HTML game
$150
A small custom browser-based game with an agreed scope and defined features. Basic testing and delivery included.
Game + website
$300
A custom browser-based game plus a companion website or landing page, with integrated branding, project links and basic responsive design.
Full custom project
$500+
Larger or more complex creative projects. Custom scope, agreed deliverables, and project-specific pricing and timeline.
Scope affects final pricing on every package — bigger worlds take more bricks. No package promises unlimited features or unlimited revisions at a fixed price; Petra quotes the real number before any work starts.
Graphic Work Studio — spec work.
Real spec campaigns Petra made to show businesses what the studio can do. Yours could look like this.
Spec campaign visuals
Delta Garden Seltzer
Spec sponsor pitch
Delta Garden
Spec product campaign
Faygo Rock & Rye
Local business
Butter Krisp
Spec campaign
Willow Pharmacy
Promo graphic pack
$150
A coordinated set of scroll-stopping visuals.
30-second promo video
$300
A short cinematic promo made for social.
Music video — basic edit
$50
Real basic edit shit: your footage, your song, cut clean and synced to the track, captions on it, ready to post. One video, no movie-budget nonsense. Peep one Petra cut himself: “Why Is Everything Okay?” ↗
Album / EP artwork
$150
Cover art with a world behind it.
Event flyer
$75
A single-piece flyer that lands fast.
Make it look like a movie
$500
The full campaign bundle.
Character creation
Get a quote
Custom character design and development shaped around your world.
Story / concept development
Get a quote
Build out a story, campaign idea, character concept, or creative direction.
Graphic work
Get a quote
Bring your idea to Building 13™ for custom visuals, concepts, and promotional content.
Mix & master
$50 / track
A balanced mix, final polish, loudness, and release-ready delivery.
Beat production / licensing
From $30
Original production and beat leases shaped around your record.
Features
Not available
Petra is not accepting paid feature requests.
Wrong turn, right building
Lost Traveler.
Yo, you look lost. That’s cool — everybody takes the wrong hallway once. Pick what you came for and we’ll point you at the right door.
Listen everywhere
Follow the signal
Shop & support
Stories & neighbors
♛ EST. 2026 · FREE PLAY · BE KIND, REWIND ♛
THE REAPERBOY
Petra's own fictional handheld, loaded with the whole Building 13 lineup. Pick a cartridge and it boots right inside the Reaperboy screen — arcade style. No late fees. Ever. 🎃
🎃 FIRST UP · NEW ROM DROP
CRYPTID CATCHERS
Petra's cryptid-hunting adventure as a real Reaperboy ROM — track down Boo-gie, the Bayou Biter, and Stumpy across 11 areas (gas station, junkyard, night carnival, swamp dock, foggy cemetery…), then face the Basement Goblin. Animated battles, a proper 2-frame walk cycle, bobbing NPCs. Grab the cartridge file and load it on your own Reaperboy hardware.
⬇ DOWNLOAD THE ROM — PLAYS ON THE REAPERBOY
REAPERBOY
PWRSIG
D-pad moves the highlight · A boots the game · B goes back.
Cryptid Catchers
⬇ Cartridge incoming — the .gbc file is downloading now. Load it in your Reaperboy: Manic EMU runs it on Petra's phone. Hunt Boo-gie, the Bayou Biter, and Stumpy across 11 areas, then face the Basement Goblin.
⬇ DOWNLOAD AGAINPetra also streams retro games on Twitch · @oopsitspetra
13
Creator Hub.
A living community inside Building 13. Real accounts, real posts — statuses, videos and work from every resident, saved on the Building 13 backend so every visitor sees the same building.
The Hub has its own front door now. The Creator Hub lives at app-building-13.vercel.app/hub — that’s where creators sign up, sign in, post their work and follow each other. Same building, same accounts.
Enter the Creator Hub ↗Two spotlights, two jobs — kept separate. Creator Spotlight puts your work in front of the building; Local Spotlight is Petra’s weekly picks and local love. The Hub itself is where creators sign up, post, and follow each other.
Lab Room 1
Creator Spotlight.
Promotion for independent creators who want their work in front of the Building 13 audience. Pick a package, send your work, Petra reviews every submission by hand.
Real talk: Spotlight features are paid promotions and are labeled as such wherever they run. No package guarantees streams, followers, sales or placement on any third-party playlist — nobody honest can promise that. What you get is exactly what's listed below, delivered by Building 13 on Building 13 channels. Nothing is published until your submission is approved, and no payment is taken on this page — Petra confirms your slot first, then payment runs through Cash App ($petraSF) or PayPal (@officiallkingkudda).
The Spin
$5
- Petra reviews your track for eligibility
- A feature in a Building 13-owned music feature (Building 13 socials)
- One promotional shout-out on a Building 13 social channel
Featured Artist of the Week
$15
- Everything in The Spin
- A dedicated promotional graphic / feature post
- Your artist bio and music links in the feature
- Two additional shout-outs during your feature week
- Placement in a Building 13-owned music feature where it fits
Full Promotional Campaign
$30
- Everything in Featured Artist of the Week
- Three additional promotional posts or content pieces
- Release or music-video promotional support
- A custom promotional graphic
- A coordinated schedule so every drop lands on time
Creator Collab
Custom quote
- For graphic work creators, video creators, comic creators, storytellers, visual artists and game developers
- Tell us the project, the goal and the budget
- Petra builds a custom support plan and quotes it before anything starts
Before you submit
- Send: your name, best contact email, working links to the work, and a short bio.
- Music submissions: one track link per Spin. Campaigns can cover a release or a video.
- Features run after approval and payment confirmation — Petra confirms your slot and start date by email first.
- Approved features are archived in this room once they've run, so your moment stays on the wall.
Lab Room 2
Local Spotlight.
Petra's weekly drop: his picks and Northshore love. This edition: Sunday, October 25, 2026. Editorial picks are free and labeled; anything paid is labeled paid.
Petra's Weekly Check This Out
Storytellers Den + Creator Hub. — This week's check-out: the Den is where the stories live — short stories from inside the building, Rissa's debut, and the Halloween flood all week. And the Creator Hub is room 13 — independent creators under one roof, signing up, posting, and finding their people.
The Den Creator HubLocal Spotlight
The Smokin' Buddha BBQ — Louisiana. Petra's homie's BBQ catering outfit — brisket chili and ribs that shut down pop-ups all over Louisiana. 8.1K deep on Facebook, 100% recommended. Serving Covington, Mandeville, Hammond, Madisonville, New Orleans, Slidell and Metairie — pull up hungry: (504) 250-3368.
Facebook WebsiteSales & Promos
Creator Spotlight is open. The Spin starts at $5 — a review, a Building 13 music feature and a shout-out. Artists of the Week get the full graphic treatment. And the Arcade stays free play, 23 titles deep, no quarters ever.
See Spotlight packagesCovington nerd shops
Good AF Games — 2033 N Hwy 190 Ste 8, Covington. Tabletop haven — Magic, Pokémon, Yu-Gi-Oh!, D&D, Warhammer — with free tables to play on site.
2nd and Charles — 401 N Hwy 190, Covington. Books, video games, vinyl, and pop-culture collectibles — a treasure hunt for nerds.
Good AF Games 2nd and CharlesGet Building 13 on your phone
The Building 13 App
Your whole building. Right from your phone. Two ways in — pick the one that matches your phone. Both open the exact same Building 13: every room, comic, track, and transmission.
Download the Android APK
The Android app is still in the workshop. When the finished file lands, the download button switches on right here. The APK is downloaded directly from this website — Building 13 is not in the Play Store or any other app store, and it doesn't need to be.
Download the Android APKDownload the Android APK — Coming SoonHow to install
- Download the APK. Tap the download button above and the file (Building13HQ.apk) saves straight from this site to your phone.
- Open the downloaded file. Tap it in your notifications, or find it in your Downloads folder.
- Approve the install. Because the file comes directly from Building 13's own website instead of the Play Store, Android will show a security warning and may ask you to allow installs from your browser. That warning is standard for any app installed from outside the Play Store — tap Allow / Install anyway to keep going.
- Launch Building 13. The icon is on your home screen. Walk in.
Install on iPhone
This is not an App Store download. iPhone installs Building 13 right from Safari as a web app — its own icon on your Home Screen, opening in its own full-screen window, same building inside.
How to install
- Open Building13HQ.com in Safari. This only works in Safari — if you're reading this in Chrome or another browser, open this page in Safari first, then follow these steps.
- Tap the Share icon — the square with the arrow pointing up, in Safari's toolbar.
- Choose “Add to Home Screen.”
- Turn on “Open as Web App” if that option appears.
- Tap Add. Building 13 lands on your Home Screen — tap it any time to walk straight in.
You're already running Building 13 as an app — this is it. Welcome home.
Same building, two doors. Nothing here replaces the website — the Android app and the iPhone Home Screen icon both open the same Building13HQ.com, so every room and every update shows up everywhere at once.
