Some of the most intense metal genres are Technical Death Metal and Grindcore. Here are some of the best bands of the genres. I'm sure there are a lot of good bands I missed so feel free to add your own.
The Top Ten
1NileNile is an American technical death metal band from Greenville, South Carolina, United States, formed in 1993. Their music and lyrics are inspired by Ancient Egyptian/Near Eastern mysticism, history, religion, and ancient art, as well as the works of H.P. Lovecraft.
Technical Brutal Death Metal to be exact - cjWriter1997
Yup, the very best of Technical and Brutal - Metal_Treasure
2Napalm DeathNapalm Death are a British grindcore/death metal band formed in Meriden, West Midlands, England, in 1981. While none of its original members remain in the group, the lineup of vocalist Mark "Barney" Greenway, bassist Shane Embury, guitarist Mitch Harris and drummer Danny Herrera has remained consistent ...read more.
From their early Grindcore days to their more up front Deathgrind stuff like Apex Predator - Easy Meat. - cjWriter1997
3CryptopsyCryptopsy is a Canadian technical death metal band from Montreal, Quebec, formed in 1988. The band has sold over 300,000 records.
None So Vile is one of the best Technical Death Metal albums ever - cjWriter1997
4Dying FetusDying Fetus is an American death metal band originally from Upper Marlboro, Maryland. Formed in 1991, the group is known for their consistently hook-laden song structures, characterized by blast beats, complex riffing, slam riffs and heavy breakdowns.
A very good Technical Death Metal band that is worth checking out. - cjWriter1997
5Pig DestroyerPig Destroyer is an American grindcore band formed in 1997 in Alexandria, Virginia. The band was formed by vocalist J. R. Hayes, guitarist Scott Hull, and drummer John Evans, later replaced by Brian Harvey.
Amazing Grindcore band that I am really digging a lot lately. Prowler In the Yard and Terrifyer are both amazing albums - cjWriter1997
6NecrophagistNecrophagist is a German technical death metal band, founded and fronted by guitarist and vocalist Muhammed Suiçmez.
A very good and as well influential Tech Death band that is definitely worth checking out. - cjWriter1997
7SuffocationSuffocation is an American technical death metal band that was formed in 1988 in Centereach, Long Island, New York, United States.
Classic Technical Death metal band - cjWriter1997
8Cattle DecapitationCattle Decapitation is an American Deathgrind band from San Diego, California formed in 1996. Cattle Decapitation's songs protest the mistreatment and consumption of animals, the abuse of the environment and touch subjects such as misanthropy and genocide of the human race. Much of their music is based ...read more.
A Grindcore band that often writes songs about animal rights and the flaws of the meat industry Also considered "Progressive Vegetarian Grindcore" - cjWriter1997
9ObscuraObscura is a technical/progressive death metal band from Germany, founded in 2002. The band became prominent when members of Necrophagist and Pestilence joined Steffen Kummerer to release the critically acclaimed second full-length album, Cosmogenesis. The band was named after the Gorguts album Obscura. ...read more.
Could also be considered Progressive Death Metal which is why they are a bit lower on the list. - cjWriter1997
Yes, Cosmogenesis was a technical death metal album while Omnivium and Akroasis had some Progressive Death Metal songs on them - Metal_Treasure
10NailsNails is an American powerviolence band formed in 2009 in Oxnard, California. The band has achieved a cult fanbase and is very well received by fans of grindcore and death metal. Nails is currently signed to Nuclear Blast.
Grindcore mixed with Powerviolence and a bit of Crust Punk - cjWriter1997