How I Hacked Essex MUD, Ran a ZX Spectrum BBS, and Got Wrecked by the Phone Bill

“From magazine advert to digital portal: the modem that changed everything.”

Before TikTok, Twitch, or even bloody Google, we were plugging modems into landlines, cracking open university gateways, and running entire virtual universes off 8-bit processors.

And the best part? We weren’t even old enough to vote. But we owned the night.

🌌 Essex MUD: The Original Online Madness

This wasn’t some flashy multiplayer with skins and matchmaking. This was Essex MUD — the first proper multiplayer text-based game in the UK, living on a DEC-10 mainframe at the University of Essex.

It was only accessible when the university was asleep, like a secret club for insomniac hackers.

• Weekdays: 2:00 AM — 8:00 AM
• Fridays: Midnight through Saturday morning

You’d sneak downstairs at 1:55 AM, heart pounding, plug in the VTX 5000 modem to your ZX Spectrum, and pray your sister didn’t pick up the landline mid-dial. One wrong move, and the connection would screech to a halt.

If the stars aligned — and the phone gods were merciful — your CRT screen would flicker to life, filling with raw, unformatted ASCII text. No graphics. No sound effects. Just pure imagination-fueled adventure:

🛠️ The Modem That Started It All

I was just a wide-eyed kid in the mid-80s, obsessed with my ZX Spectrum 48K.

Games like Manic Miner and Jet Set Willy were fun, but I craved something more — connection to the outside world.

That’s when I spotted this advert in a computer magazine. It promised a whole new universe of “electronic communications” for under £50.

This is the future! Bulletin boards, online games, email — and it’s on special offer!

The ad screamed opportunity: “Discover Prestel, Micronet 800, Viewfax, bulletin boards… linking their home computers to giant mainframes and a modem.”

It even included user-to-user software on cassette for £3.95 extra.

My parents caved — probably to shut me up — and ordered it via the coupon. 28 days later, the VTX 5000 arrived.

No external power needed; it plugged right into the Spectrum’s edge connector. Crashed frequently — don’t move it or your Spectrum would display a rainbow screen of crashed hell.

📞 Dialing into the Underground

With the modem in hand, my first stops weren’t just games — they were the gateways to a hidden community.

Prestel and Micronet 800 became my standard dial-up haunts — like digital pubs where hackers gathered to swap secrets.

I’d dial in at 1200/75 baud, navigate blocky menus, and head straight to message boards. That’s where we traded NUA addresses — access codes for X.25 networks.

“Try 234220641141 for a free gateway,” someone would post.

🔓 Hacking My Way In

Armed with NUAs, I chased Essex MUD. It ran on a DEC-10 via PSS (Packet Switch Stream), which linked into the JANET academic network.

I’d set up terminal emulation software — not easy back then — dial a PSS access number (scraped from BBSs or whispered on Micronet), and navigate login prompts.

Sometimes guest access worked. Other times, I had to hunt default passwords or just redial until it let me in.

go north
take sword
attack goblin

📡 Running My Own Spectrum BBS

After MUD came the empire: Skylark BBS. Hand-coded in Z80 assembly with my brother on a ZX Spectrum.

• Hardware: Spectrum 48K + VTX 5000 modem
• Software: Assembly-written BBS with Microdrive Storage
• Features: Message boards, NUA trading, crude live chat

One user at a time. Open 10PM–6AM to avoid family call conflicts. It worked. It thrived. Until…

💥 The Reckoning

Then came the bill: £200+ in charges. That’s over £600 today. JANET calls, international NUAs, Micronet sessions — it all added up.

Modem: confiscated BBS: terminated Me: grounded into the next millennium

But I wouldn’t trade it for anything. It taught me networking, coding, curiosity — and how to sell a revolution with a magazine ad.

🧠 Epilogue: Lessons from the 8-Bit Frontier

If you’re reading this on a 5G phone with unlimited data, remember:

We paved the way — one screeching modem at a time.

• Pro Tip: Always check call rates before hacking
• Nostalgia Hack: Emulate a Spectrum and dial into a retro MUD
• Shoutout: To the VTX 5000, Prestel, Micronet 800, and every kid who passed around NUAs like sacred scrolls

✉️ Got your own modem war stories? Drop them in the comments. Or find me at **peter@quantumbug.uk**