(I put this under directed promotion although it's not really, in the strictest sense.)
((I pre-emptively transferred the discussion here from Stuff to Watch because I expect it will get more than three replies one way or another.))
James Raggi of Lamentations of the Flame Princess has gathered a number of writers/designers and paired them with artists and launching a simultaneous crowdfunding campaign for them all. You can see the progress of all the campaigns here: lotfp.com/RPG/grand-adventure-campaign
Notable names include Anna Kreider, Vincent Baker, Monte Cook, Jeff Rients and others.
In the other thread, Rafu asked:
Has anybody here took time to scan them all? Is any other author besides Vincent producing an adventure-construction-toolkit or something else which is not just "an adventure"? Is any of them promising a pure location-based adventure with no overarching "plot" to it?
I looked through a number of them, but the descriptions are sadly not very informative for the most part.
I think Vincent's the only one which is explicitly a toolkit.
I seem to remember Machinations of the Space Princess might have some make-your-own elements, but that is by no means certain information
misremembered. I expect Anna's contribution might be something more along the lines of a scenario, but that's just me speculating - I hope she will pitch in herself.
I'd say with almost absolute certainty that the vast majority of them are location-based. This is an OSR outfit after all and those guys and "plot" are usually like oil and water.
I am currently the most interested in Vincent's adventure but Of Unknown Provenance intrigues me as well (or what little is known of it). Other adventures that I expect to be interesting (based on the author or otherwise) are Machinations of the Space Princess, Horror among Thieves, We Who are Lost, The House of Bone and Amber and The Unbegotten Citadel, Broodmother Sky Fortress - these seem to be getting the most founding at the moment, too.