anyone know what this symbol is called?

Yep, that's Lambda. HL! You should know dude!

Maybe it's 人?

This is 入？

Its Lambda. The Half Life symbol. λ

It's the symbol of the Half-Life games, Lambda.

correct! it was a challenge to see if anyone knew

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Oh no im late... ;-; HL3 confirmed [Btw half like 3 is confirmed gabe just never wants to make it XD]

someone make a FLIPIN HL! λ

λ

oh really i am in chineese[manderin] lvl 2 and that is the symbol for person it is pronounced rén you say it like a question so in other words you have a rise in tone as you say it kindda like sayin "ren?"

I understand it's hard for western people to distinguish 人 from 入. The symbol for person is the former, and I guess the symbol drawn in attached photo is the latter. The latter symbol means "enter" or "insert".