DriveThruRPG is having a HUGE sale on thousands of titles with the May D&D Sale, with everything Dungeons & Dragons, from Original to Fifth Edition!
And when I say thousands, I mean almost seventeen thousand. Good luck browsing those! Only considering the titles tagged as OSR, you get the incredible amount of 1980 titles on sale to check!
And to those, we must also add 107 official OD&D/BECMI titles, and 134 AD&D1stEd titles!
The sheer amount of titles available makes it hard to create a list of OSR recommendations, so this time I'll focus on Old-School Essentials as it is my current go-to ruleset.
OSE Rulebooks
Of course the list begins with the core OSE books, both the Classic Rules Tome and the Advanced rules. If you're reading this, you're probably already a fan (like me), but don't forget sales are a great occasion to spread the word. Tell your friends!
Adventures
Well, the whole Old-School Essentials line is part of the sale, which means you can get some great adventures too, like Incandescent Grottoes or the Ennie award winning Halls of the Blood King, and also the Dolmenwood setting line!
Ominous Crypt of the Blood Moss - A very good 10 room dungeon. I've reviewed it here.
The Black Wyrm of Brandonsford - An exquisite, sandboxy point-crawl adventure for characters level 1-3, very easy to run, with lots of interaction between locations, that I can't wait to run. Just reviewed it!
Puzzle Dungeon: The Seers Sanctum - Another very good 10 room dungeon with, well, a lot of well conceived puzzles. I've reviewed it here, and if this dungeon is a great opportunity to connect your existing campaign to the setting outlined in the best seller Planar Compass zine series which is on sale too!
Hideous Daylight and Temple of 1000 Swords - Two third-party Old-School Essentials adventures by Swordlords Publishing with awesome reviews.
Xanadu - Another acclaimed third-party Old-School Essentials dungeon adventure, by Singing Flame.
Bottomless Pit of Zorth - Another acclaimed adventure, with a slime theme and insane art, for characters level 3-5, which is a less frequent level bracket in comparison to level 1-4, and makes it definitely worth checking.
Tannic - A just released level 1-3 adventure set in a haunted forest, by Amanda Pratt, that looks pretty cool (seriously, check the preview).
Sourcebooks, Supplements & Zines
The whole Third Kingdom line of hexcrawl supplements is out there, including the great Filling in the Blanks guide.
The unusual A Groats-worth of Grotesques bestiary, which I've reviewed here.
The Delver Magazine zine series, full of awesome random tables, along with its Tavern spin-off.
My very own Lands of Legends zine series, learn more about it here.
The Old School & Cool zine series by Knight Owl Publishing.
Bonus Offerings
For those who feel like reading thousands of pages, the Castle Oldskull Megabundle is definitely worth a look (includes guides, classes, bestiaries and even novels), and price-wise it is the sale with the largest discount.
And if all those sales don't whet your appetite, you can check some free or PWYW titles, such as my own Old-School Essentials e-zines, or the stunning Black Pudding zines by James West!