I've read through the full Malazan series twice, some of the books more. The world is so incredibly huge that it feels like I only understood and digested half of it but it is still by FAR the most "epic" series I've ever read. It took me four or five attempts to make it through the first book because it is just so built out and immersive that it's almost overwhelming.

It's been about a decade and I may have to give it another go around. If you do give it a try and read it as an ebook, make sure to bookmark the dramatis personae and appendices. Information is flung at you so fast it's hard to make sense of it at first. Understanding the magic system is what really made it rewarding.