Writing up some orc culture

Orc does not need culture. Only nature.
philipsibbering.com/whf/03-02-orcs.shtml

Yeah, head-on grappling is pretty high on my list. When you're bigger, or at least as-big-as at minimum, to all of your opponents there's no reason to not just grab them and slam them.

Many races of orc in my setting actually do have a generally animistic-ish religion, and are much more one-with-nature than any other dominant species (other than the animals themselves; it's a fairly primitive setting).

this stuff: youtube.com/watch?v=ExQNWr0cd_Q might be too advanced for orcs, but it looks brutal enough.

Krav Maga

I too always enjoyed the idea of orcs very heavily focusing on grappling/throwing as an unarmed martial art culture. It makes sense. Orcs often very physical as a culture, a wrestling is probably the most physical you can get without dipping to much in pajama fighting. Throw togethrr greako with sumo and judo and its basicly orc combat sport heaven.

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Pankration.

bump

Kyokushinfag here
It's the only martial art I have personal experience with. It is about strength, endurance and willpower, the most powerful strikes and the greatest resilience are sought.
Then again, every martial art has its own things. I could definately see orcs as wrestlers and there's many styles for that.
I could see a setting where orcs are very martial-minded and train in lots of unarmed combat styles, with different tribes having different preferences - some prefer down on the ground wrestling, some prefer knockdowns and disabling the opponent, some prefer just beating the shit out of them on two feet.