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