Hello! This is very early but I wanted to start getting the word around (and give myself an excuse not to back out), but on April 1st submissions will open for my game jam, Me, Myself, And My RPG. 
This game jam will be dedicated exclusively towards the creation of Single Player tabletop and larp experiences. 

The guidelines, which you can also find in the link below are: 

• The game must be an analogue rpg (tabletop, larp). 
• The game MUST be playable with only one player. The PRIMARY EXPERIENCE of your game must be single player. Do not make a normal game and scramble for 1-player compatibility. 
• If the game is still playable by more than one player, that's fine! As long as it doesn't diminish the single player experience. 
• No games that encourage hatred or discrimination of marginalized group (No Homophobia, Sexism, Racism, Ableism, etc). #UseSomeCommonGoddamnSense.  NOTE: Games that respectfully explore or tackle these themes are exceptions. 

As the jam doesn't open for about two weeks, I'm happy to take any suggestions or questions people might have. 

Link: https://itch.io/jam/me-myself-and-my-rpg-game-jam

Joined! I'm working on a single player game right now, but looking forward to starting fresh on a new one.

Also, picked up Alone Among The Stars last night, played a few times. Love the concept, might use it to sculpt the loose narrative behind individual tracks in a music project I'm working on called Starship Narrator. Perfect fit!

Super into this idea, looking forward to contributing!

We held one of these in 2011 under the name “RPG Solitaire.” Can recommend! http://rpgsolitairechallenge.blogspot.com/p/awards.html?m=1

I'm so excited to see what people submit!!! I'm really into Solo RPGs and had no idea there was a place for them on itch.io!!!!!

Really excited to try this! I've never made a game focused on the single player experience before