Sorry if most people knew this, I know at least one frequent poster here who didn't therefore I feel obliged to share this just in case.
My biggest surprise with getting Humble Monthly for DS3+DLC is that apart from 5-7 games that you get additionally you get access to Humble Trove, which is absolutely bonkers:
https://www.humblebundle.com/monthly/trove
All of these games (currently 46 if my brief count is correct) are DRM-free so you can download them now and play it anytime you want without continuing subscription. There are many 'unknown' titles but there are loads of excellent ones too, like Torchlights, Shadowrun Returns, Getting Over it, The End is Nigh, Limbo and many more.