Chelsea Wolfe has also announced an intimate headline show in London, where she will perform the new album in full.
The album features Chelsea Wolfe, Ben Chisholm (Chelsea Wolfe) and Stephen Brodsky (Cave In, Converge) - check out the new single here.
'Bloodmoon: I' will be released in November, head here to find out more details.
Thursday main stage headliners Chelsea Wolfe and many more confirmed in this latest announcement.
Roskilde announces 11 more acts including Gorillaz and Stormzy.