Xenomorph-like creature but with a Base instead of Acid as blood

I'm looking to build a horror type sci-fi game based on the Alien franchise. My question comes in trying to differentiate my alien from the Xenomorphs. I want hurting it with a melee weapon to be inherently dangerous, but not use acid as blood. So my first idea was to go the other way on the pH scale, but I don't have enough of an understanding of chemistry. So, my questions are:

How basic would a substance have to be to cause immediate damage, and what would the damage look like (basic blood instead of acid blood)? I'm not looking for something that burns through everything on contact, just something to give pause to someone whose options are mostly stabbing-related.

and

What would the major difference be between having something spill acid vs spill a base when it bleeds?

Also let me know if these questions are too different despite being related, and I'll split this up into 2 questions.

Thanks for your time!

posted over 4 years ago

Glenn Driver‭

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