A Pre-Rogue-Like: Fixing 1979's DUNGEON for the Commodore PET

Dungeon for the Commodore PET is a Rogue-like released in 1979, before Rogue from 1980! It also has some bugs preventing it from being enjoyed on newer PETs, so let's fix it.

Chuck Hutchins' MiniPET build: https://youtu.be/oHeQc1RgPFk

Become a patron: https://patreon.com/8BitShowAndTell
One-time donation: https://paypal.me/8BitShowAndTell

Download original Dungeon: http://8bitshowandtell.com/prg/dungeon.prg
Download fixed Dungeon: http://8bitshowandtell.com/prg/dungeon40.prg
Beneath Apple Manor fixed disk: http://8bitshowandtell.com/prg/Beneath_Apple_Manor_1978_version_fixed.dsk
Buy MiniPET: https://www.thefuturewas8bit.com/mini-pet.html
Porting Dungeon to Python: https://www.reddit.com/r/Commodore/comments/guom86/dissecting_a_commodore_pet_program_dungeon/

Ending credits song is "Rogue" from Bedford Level Experiment's album "Place Without A Computer": https://bedfordlevelexperiment.bandcamp.com/album/place-without-a-computer

Index
0:00 Intro: CURSOR Magazine, Brian Sawyer
2:13 A bit of Dungeon gameplay
3:33 History lesson: Rogue-likes
7:13 The Dungeon glitch
8:13 Chuck Hutchins: Bug reproduction on Mini PET
12:04 Problem: PET BASIC 2 vs. 4
15:53 Garbage collection on BASIC 2 (C64 and early PET)
20:30 Garbage collection on BASIC 4 (later PET)
24:06 Fixing Dungeon
30:01 Chuck Hutchins: Testing the fix on Mini PET
32:00 Thanks

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