What softwares and instruments can I use in order to be covering these (sort of atmospheric) songs?

[dyinghawks]

Hello there,
I just want to know what softwares and instruments I can be using to cover (or creat something alike) these songs:



And this one too (even though I know it's a completely different treatment):



Thanks a lot

[Cyoon]

U-he zebra would cover this and more.