Damn dads, we never listen to our kids.

Thank you for your advice, alot of tiles were broken up into multiple pieces which worried me. we are both smokers lol

to wash can i use dish soap and water?

Spray it down with dish soap solution, using a fertilzer/chemical sprayer and wet vac it up.

Ok my dads done 2/3 of a 10x20 room, i tarped it last night and soaked it down told him to continue that today and ill do a big clean up hopefully starting today

Any idea what this is my dad thinks there was a broken pipe under

Underlay was damp ontop and looks like rust spots on the patch, basement floor concrete under

It maybe a cracked or rusted drain pipe. A thermal camera will help to see what's underneath.