I have seen a few folks online worrying the things they’d like to submit might not be “OSR enough” to count for this jam — but I notice the examples given include some more “new school” takes, too, like Into the Odd. 

Just wanted to double check so I can confidently reassure others: Am I correct in assuming it’s okay to submit stuff that deviates from D&D in pretty significant ways? (Like: no ability scores, or no hit points, or no classes, or whatever.)

Thanks! (And no hard feelings if you really do want to keep it more old school than I assumed.)

Edit to add: I really appreciated the long list of games and the explanation in the jam description! I think the source of confusion might be that some folks are (I think mis-) reading it as “things above this line count as OSR, and things below this line are post-fracture and thus do not count for this jam.”

I think you're right!
As far as I can tell, anything under the big umbrella of OSR - including the new school stuff - is fair game.

I'll make a twitter post to clear things up but from the jam page:

I may be somewhat of a purist myself - as in "OSR means I can run Keep on the Borderlands without much conversion work" - but for the purposes of this jam, OSR is like porn: you know it when you see it.

Anything you make that "feels" old school is good!

That's what I thought, thanks! 

(And I read that part, but I associate the "you know it when you see it" line with a Supreme Court justice who really meant "I know it when I see it" … so I figured it was safer to ask, just in case.)  :-)

I’m just worried I’m gonna wind up making some crappy borderline-unplayable Starfinder wannabe instead of an OSR-inspired sci-fi game.