It's an Infocom antiheroic classic and a throwback Infocom parody this time out as modern IF legend Andrew Plotkin (Zarf) joins Jason and Nick for two perilous adventures.

Lurking Horror sendup The Smirking Horror by Jason Davis leads off, a reasonably faithful re-interpretation of The Lurking Horror from Infocom. It's the first Amstrad CPC exclusive on the show and makes surprisingly minimal use of the graphics available in Graphic Adventure Creator.

For the main course we take on Infocom's Infidel, memorably parodied by Zarf himself (Episode 27's Inhumane) and created by Michael Berlyn and Patricia Fogleman. Legendary for its surly protagonist and shock ending, does it hold up to modern scrutiny?

Infidel (IFDB)

Infidel packaging (gray box)

Infidel packaging (folio)

The Smirking Horror (CPCWiki)

The Smirking Horror (playable online)

There's news out there in classic text adventures and neo-retro interactive fiction, and it's past time The Retro Adventurers got serious about delivering it! So, welcome to the first installment of a new monthly feature, OPEN MAILBOX -- where you GET NEWS AND LISTEN TO IT.

This episode compiled and presented by Retro Adventurers Nick and Jason covers multiple new Infocom/Z-Machine interpreters, Andrew Plotkin's Visible Zorker developments, an amazingly layered Cornerstone prank-that's-also-real, and other novel developments.

Zym II and Inform 6 Optimization:

https://intfiction.org/t/zym-ii-an-8-bit-z-machine-interpreter-for-symbos/79520

https://intfiction.org/t/accelerating-inform-6-games-on-8-bit-interpreters/79531

https://github.com/fredrikr/krebf

Visible Zorker - Deadline hijinx:

https://blog.zarfhome.com/2026/03/visible-zorker-march

https://www.patreon.com/VisibleZorker

New Features for Old Hardware:

https://intfiction.org/t/statusline-options/79162

https://github.com/johanberntsson/ozmoo/releases

Retro Adventurers on Discord:

https://discord.gg/8jrbVptACc

https://discord.com/channels/830344544679493644/830344937252978718/1491913229721665840

https://www.springthing.net/2026/

https://intfiction.org/t/zabbrev-has-been-ported-from-c-to-c/75176/24

https://jxself.org/git?p=zabbrev.git;a=summary

The Linchpin to Infocom’s Database Strategy?:

https://intfiction.org/t/cornerstones-vm-was-cornerstone-for-atari/79644

https://blog.zarfhome.com/2026/04/cornerstone-and-the-mu-machine

https://www.youtube.com/watch?v=Xgz5GIbKx3Y

https://zilf.io/

Interactive Fiction Technology Foundation (IFTF) Grants:

https://blog.iftechfoundation.org/2026-04-08-announcing-the-2026-iftf-grant-recipients.html

Keep Circulating the Tapes:

https://ifdb.org

Thank you for another year of Retro Adventuring with us! To celebrate we've gathered together to share important news about a change in the team roster, an exciting new monthly department, and to share a first look at our new handcrafted artwork (thank you, Emily Sergent)!

Spend a little time with Jason, Nick, and Tim and watch for more game, interview, and news episodes coming soon to your feed (and YouTube, which did get sorted out!)

Our YouTube channel

Douglas Adams BBC interview (1985)

The BDB Project (Bonaventura Di Bello adventure translations)

Tim's 1987 (?) photo

Adventure Game Aptitude Test (Maniac Mansion 4-hour challenge)

Zork 78 logo pillow

Hyperspace adventure awaits as Tim Gilberts joins Jason to play two underrated science fiction games from the 1970s. For starters it's Dog Star Adventure, the first type-in text adventure in Softside Magazine. True to its 1979 roots it's steeped in Star Wars lore and vocabulary, and was ported to plenty of classic platforms in its heyday.

The feature game is Aldebaran III, one of the games created by Peter Langston in his Wander system. It, too, leans heavily on genre fiction, in this case the Retief novels by Keith Laumer, covering interstellar espionage, diplomacy, and bureaucracy in equal measure.

Aldebaran III (IFDB)

Wander source code (Github)

Wander game analysis (Renga In Blue)

Aldebaran III (CRPG Adventures)

Dog Star Adventure (IFDB)

Dog Star Adventure in Softside May 1979

Dog Star Adventure (Old School Gamer Magazine)

Ron Martinez, our guest from Episode 11, returns! This is actually a holdover from the 2025 Year-End Chatisode sessions, but it really stands alone as an exploration of Ron's recent work in narrative design involving generative AI, large language models, and other 21st century interactive storytelling techniques. Joining us on the call are regular Retro Adventurers Jason and Nick, along with This Week in Retro's Dave "Velociraptor" (Episode 29).

And it's a big day for Nabokov fans as both Pale Fire and his lecture on The Strange Case of Dr. Jekyll and Mr. Hyde are invoked.

Hidden Agenda 2026 preview

Hidden Agenda 2026 landing page

Invention Arts

Headcanon

It's the Infocom classic Zork, but in two unusual formats!

First Nick and Jason explore the unusual covertape edition of Mini-Zork I, a stripped-down, memory-resident version of the original Great Underground Empire created in 1987 and later provided free to readers of the November 1990 issue of ZZap 64 magazine for the Commodore 64. It's a bold undertaking, but is it art? Indeed, does it even work at all?

Then the Retro Adventurers take on Zork-285, a reconstruction "of the very first MDL version of Zork from June 14, 1977" as provided by Henrik Åsman. Only available to play by a small cadre of MIT insiders, this version has the bones of what would later become the full-fledged Dungeon game before being carved up for Infocom's commercial products Zork I, II, and III. It's full of pitfalls but notably empty of grues.

Cover image from David Ardito's 1981 Zork poster, sourced from zarfhome.com

Mini-Zork I on IFDB

Zork 285 on IFDB

The Newton (excerpt from The Agony and the Ecstasy of Steve Jobs, performed by Jason)

Holiday merriment with many past guests and minimal editing!

Retro Adventurers Jason and Nick chat about the year that was including recent developments in classic adventure open source, plans for 2026, and more with many of our past participants:

Robin Raymond, author of Kingdom of the Seven Stones (Episode 9)

A separate chat with Ron Martinez (Episode 11) will be published in a later episode.

Parsely tabletop game

Nick's unfinished PunyInform book

Nick and Jason deliver holiday cheer straight from Santa's Grotto in the form of two 1980s Christmas classics. First up is the bite-sized Quill adventure A Spell Of Christmas Ice by Mike Turner, originally published on the tape-based 16/48 Magazine for ZX Spectrum users. For the main course, enjoy Brian Howarth's very British adaptation of the very American monster mayhem classic Gremlins.

Curl up by the fire with your favorite picturebook adaptation of a Hollywood blockbuster, listen, and enjoy the season!

16/48 Magazine Issue 12

A Spell Of Christmas Ice, stand-alone tape image

Mike E. Turner (IFDB)

Gremlins: The Adventure (IFDB)

Gremlins: The Adventure (MOCAGH)

Level 9 Archive (Github)

Andrew Plotkin's analysis of Zork I-III becoming open source

Original cover photo by Gy21dds

No one has reviewed more text adventures and works of interactive fiction over the past decade than MathBrush. A self-described newcomer to the scene he has nonetheless posted over 3,600 reviews and counting of games old and new, along with creating or collaborating with others to create 30 games of his own.

MathBrush's thousands of reviews

MathBrush's IFDB profile

MathBrush's games

Intfiction.org profile

Get ready to type out every letter in "dodecahedron"!

Nick, Jason, and Ben play two games steeped in math, science, and trippy physics in this episode. Beyond the Tesseract by David Lo is the appetizer course, a game originally designed in TRS-80 Level II BASIC, then ported to C and published on a variety of platforms before later being reimplemented in Inform 6 by Andrew Plotkin. A self-professed "abstract adventure", you'll have a better time with it if you paid attention in school.

The main course was published in 1984 for the BBC Micro by the Association of Teachers of Mathematics (UK) and goes by L: A Mathemagical Adventure. It's a core memory for many who were young and remember their school experiences with BBC Micros, but does the plot to rescue the fair maid Runia from the Drogos hold up today?

Beyond the Tesseract (IFDB, includes playable link)

L: A Mathemagical Adventure (IFDB)

L: A Mathemagical Adventure (playable online, BBC)

Beatle Quest for BBC Micro

Shawn McClure's How To Design Adventure Games (IntFiction.org)