This episode has been loooong in the making.  Mainly this is because I recorded the interview at the end of September.  This show is on solitaire RPGs.  I interview Kenny the Cabbage.  He runs the solitaire RPG guild on BGG and hosts a blog on solo roleplaying (soloroleplayer.com/).
I also look at solo roleplaying using the Covetous Poet Adventure Creator and GM Guidebook.  This book is used to both create an adventure with a big adventure, to you would play over multiple game sessions, and help you play an RPG solo.  It is designed to be used along an RPG of your choice.  Even though the adventure is defined up-front, the details of each scene are completely unplanned until you are ready to play it.  The game turns out to be quite surprising.  I tried this out using the Fantasy Flight Edge of the Empire Beginner Game RPG and it worked really well.
Covetous Poet Adventure Creator and Solo GM Guidebook
Edge of the Empire Beginner Game
Kenny's Solo Roleplayer.com
Mobius Adventures game aids
Solo RPG guild on BGG
Lone Wolf Roleplaying Google community

Tiger Leader on KS
Dawn of the Zeds:  The Director's Cuts expansion #1
Trader's Vengeance gamebook on lulu.com
Pandemic: State of Emergency