Professional ratings
Aggregate scores
Source	Rating
Metacritic	64/100
Review scores
Source	Rating
About.com
Blabbermouth	9/10
Decibel Magazine
Metalsucks
Pitchfork	6.4/10
Revolver	3/5
Sputnikmusic	4.5/5

RIITIIR, occasionally typeset as "RIITIIЯ," is the twelfth studio album from the Norwegian extreme metal band Enslaved. It was released on September 28, 2012 in Europe and on October 9, 2012 in North America. The name RIITIIR is Ivar Bjørnson's "Norse-ified" take on the words "Rites/Rituals", or "The Rites of Man", and rituals form the central concept of the album. The album received positive reviews from music critics, and sold around 2,300 copies in its first week of release in the United States, which made it their highest debuting album to date in terms of sales.

BBC Music described the album as "a complex, schizophrenic work, verging on the overly sensorial at points, leaving the listener feeling as if they’ve been repeatedly bashed over the head with a really clever hammer. It’s marked by sudden shifts in tempo and disposition, propelled by unhinged rhythms: check the title track’s arabesque, Melechesh-like pummel." They also noted that keyboardist Herbrand Larsen's clean vocals "dominate" the album, "imbuing its eight tracks with a sheen of accessibility that may test the tolerance of some."

Lyrically, the songs all draw to some extent on the theme of rituals, which the album title refers to. Some of the songs take a historical perspective on pre-monotheistic religions around the world and their purpose. The opening song 'Thoughts Like Hammers' takes a philosophical perspective on the role of ritual and philosophy as an "engine for change". Others deal with the inner state and psychological side of rituals. Bjørnson has said that "We have all these different angles that are looking at that, because it is evidently quite important. It holds the key to other things. We’re not concluding, we’re more asking, I guess, and exploring through our own asking, is the ritual seeking to cause physical change in the world, to alter reality, or is it actually more trying to change the perception?"

According to Kjellson, the artwork "deals with certain forces that all human beings share and/or have in common. More relevant in ancient times than modern times, we’ve moved away from human instincts to a certain extent. We have looked at all the mythology, the Indian, Egyptian and Norse. You can find loads of the same ways of looking at life, approaching life, taking the first steps so to speak. We shared more or less the same philosophy, the same approach to life. Didn’t matter where it came from, didn’t matter who you talk to. There’s a lot of common deities, the basics of the first primal steps, the first primal rituals of man, of civilizations. And these civilizations didn’t have any contact at all, it’s very interesting how humans come to think the same way, we share some instincts."

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