There are two sets of Warhammer first edition RPGs and supplements in the Bundle of Holding, and one is entirely new.
Fantasy 3D printable models on Humble Bundle
Humble Bundle currently have a collection of designs you can buy at a discount and download the STL files.
Goodman Games put their D&D 5e books into the Bundle of Holding
You can find a tonne of Goodman Games 5e material on The Bundle of Holding.
Bundle for Beirut! $235 worth of RPGs for $30
100% of proceeds go to Doctors Without Borders, and you can grab the bundle, for a limited time, from DriveThruRPG.
Yog-Sothothery in Rome: Cthulhu Invictus in the Bundle of Holding
Set late Age of the Antonines (AD 145), at the peak of the Roman Empire when ancient wizards fought to defeat death and explorers brought back dangerous artefacts from the remains of alien civilisations, only a few fight to hold back the darkness.
Lebanese Red Cross Relief Fund: $10 for 52 games
There are a host of great looking RPGs in this charity supporting Itch.io bundle.
Star Trek Adventures RPG live on Humble Bundle
In addition to the usual downloads, there’s a 50% off coupon for the hardback core rules and an original DS9 Uniform and Elite Services pack for the free to play Star Trek Online available in the tiers.
The entire Dying Earth RPG series is in the Bundle of Holding
The sun is almost out of power, the moon is gone, and magic is dominant.
The Old School Gold bundle offers up Golgotha, Mothership and more
There’s an Old School Gold bundle that has the likes of the ENnie-dominated Trilemma Adventures Collection, sci-fi horror Mothership, Golgotha and other popular titles.
Savage World’s Flash Gordon on the Bundle of Holding
The Savage World of Flash Gordon is a Kickstarter 2017 success and is based on Alex Raymond’s original comic with nods to the 1980s movie too.