Blast'D! Arena: real teams, real running,
real scoring.
Blast'D! Arena is the indoor playground Frederick has been missing — Plasma vs Acid, Blaster Battles, capture-the-flag, four flavors of dodgeball, all on real teams with live scoring on a 75-inch big board. Founded by Jim Crane, a Frederick native who wanted the kind of place he grew up playing in. 1891 built the operating system that makes the whole thing run — the sensor fobs, the live game engine, the marshal dashboard, the booking pipeline, the public site — end to end, under one roof.
What Blast'D! is
Blast'D! Arena is the indoor playground Frederick has been missing — a real-play space inside Francis Scott Key Mall where 12 kids can show up, run, sweat, settle it on the floor, drink from the fountain, and leave better friends than when they walked in. The brand colors are pink and green for a reason: every session, you’re on Plasma or Acid. The teams matter. The score matters. The big board on the back wall calls it.
On the floor: Blaster Battles (soft foam darts, eye protection mandatory). Capture-the-flag with sensor-aware flags that know when they’re sitting, lifted, airborne, or captured. Four flavors of dodgeball. Hide-and-seek, tag, and the Monster game for the under-7 crowd. Live scoring on a 75-inch board, every event timestamped. Birthday parties, drop-ins, leagues, homeschool PE, summer camps.
It was founded by Jim Crane, a Frederick native who, in his own words, “wanted to build the kind of place I grew up playing in — scraped knees, water-fountain breaks, real teams, real rivalries. Just with a better scoreboard.” The brief that landed on our desk in late 2025 was one sentence: “Build me the technology so I never have to think about the technology.”
What we built
Everything between the customer typing their kid's birthday into a form and a soft foam dart hitting a torso pad on the floor.
- Device mesh Custom base stations, sensor-aware flags, mobile displays, and tap-to-register fob kiosks — designed, prototyped, and made in Frederick. The hardware on the floor knows what it sees and stays out of the way of what it doesn’t.
- Game engine A single authoritative source of truth for identity, rules, match state, and scoring. Every capture, every elimination, every respawn passes through one decision-maker. The arena floor renders what the engine reports.
- The big board The 75-inch live scoreboard on the back wall. Reads from the engine, animates captures, surfaces marshal events — visible from the door so parents on the couch can read the score without asking.
- Marshal dashboard The front-desk app. Roster, schedule, fob handoff, mid-session game switches. Tuned to a Tuesday-night pace and a Saturday-birthday-party pile-on.
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Public website
blastdarena.com— landing, games catalog, booking, waivers, leagues, homeschool, FAQ, careers. Static, fast, deployable in one push. The games picker below is a slim port of this site’s filter logic. - Booking → recap pipeline The whole sequence in one chain: customer books online, signs the waiver, walks in, taps a fob, gets put on a team, plays, gets a recap. End-to-end, no human re-keying anything mid-session.
signature + dodgeball + little-kids
visible from the door
fob in, team out
by design
The architecture, in one screen
This is the stack from top to bottom. Each tier does one job, and only that job. Nothing on the arena floor knows the rules. The Mac knows the rules.
A platform is a system ordinary staff can recover. — a working principle, written into the scope on day one
Pick a game for a 6-year-old's birthday.
Below is a working slice of the Blast'D! /games picker. It pulls from the same game catalog the live site uses. Filter by minimum age (so the under-7 crew gets the right shortlist) and by intensity (so a homeschool PE class doesn't land on high-intensity dodgeball). The full catalog has rules, tips, and variations — that's on the Blast'D! site. This page just shows the picker.
Why this fits 1891's pitch
The main demonstration on madeby1891.com argues for systems built end to end, in Frederick, under one roof. Cameras instead of microphones. Hardware, firmware, gameplay, and set design from the same workshop. Blast'D! is the proof point. This is the first thing 1891 built end-to-end as a working venue. Every layer in the stack above is made in the same building. When a base station behaves strangely on a Friday night, the person who wrote the firmware is the person who answers the call on Saturday.
Universal design is baked in by default, not bolted on. A 4-year-old can register by tapping a fob — no reading, no typing, no parent translation. The marshal calls game changes with a button on a dashboard, not a console command. Scoring is visible-first on a 75-inch board — no announcer required. The system is operable by ordinary venue staff: no console, no SSH, no physical intervention beyond plugging things in and tapping fobs. That's a spec straight out of the scope doc, and it's the spec that makes the room work for everyone who walks in.
The pieces that also support Deaf-accessible play — visible status indicators on every device, color-coded LED feedback, captioned big-board events, no audio-only cues — are there because they are correct universal-design defaults, not because we bolted on an accessibility skin.
What's still unfair about this kind of system
The brief said "build me the technology so I never have to think about the technology." We took that seriously. Booking, waiver, roster, fob handoff, match runtime, score archive, recap email — every link in that chain has to hold under a Saturday party with three groups overlapping and a marshal who started two weeks ago.
The thing we did not do is hand the venue a SaaS subscription, a black-box vendor, or a 60-page integration deck. The whole platform lives on a Mac the staff can reboot. The firmware lives in a git repo we co-own. The website is static. The Mac core is testable from the command line. When something goes wrong — and on a system this complex, of course something will, eventually — the people who can fix it are the people who built it, and the people who built it are 25 minutes up the road.
Customers don't care about the protocol. They care that the fob registered, the flag capture counted, the scoreboard exploded at the right moment, and the marshal didn't have to reboot anything mid-party. — Anthony Mowl, framing the build for Blast'D!
That sentence is the entire engineering ethic in one line. We measure by what the parents see, not by what we made.
Building a venue that needs a real operating system?
End-to-end, in Frederick, under one roof. We take about six commissions a year. First call is always free.