For your convenience every zip file contains the following packages:
linux-headers
linux-image
linux-libc-dev
"Vanilla" is the default config taken from a recent debian kernel and applied to a recent kernel version
"VM" is the default config taken from a recent debian kernel and applied to a recent kernel version while having all unneeded drivers stripped (runs on vmware, virtualbox, hyperv, xen, kvm)
"gentoo-vm" is a gentoo patchset kernel with a config optimized for KVM virtual gameservers to run more smoothly and lag free.
"gentoo-bm" is a gentoo patchset kernel close to a denbian kernel but tuned for 'bare metal' gameservers to run more smoothly and lag free.