Lithobreakers?
A group of jam games made anonymously?
Around a theme of Defenestration?

Would be really weird if I had participated in this jam and then also posted about said jam,
but if I did post the link to see the jam games, it could be right here: 
https://itch.io/c/4644459/lithobreakers-jam-01-defenestration

It's almost impossible to say for sure though...