Compounds in q8?

Kind of, but you need to be more specific.

I will move with my family soon and i need to know if there is compound 3bd houses with play area for kids security and shared swiming pool at reasonable rent price. My kids will be probably at LFK. Thx

Houses no, but there are apartment buildings with a pool. However finding something in Salmiya where the school is will be a challenge, especially for a a reasonable price. Defining what is a "reasonable price" for you will be helpful.
However you may find something in the neighboring areas.

Thank you Ribosom. Could you please give me the name of some near areas at which i can find a nice  3bd with facilities for 500KD.

Personally I would try with Salwa.

Go Salwa, you'll get more for your money but still be close to the schools and whatnot.

Kuwait is plenty safe and there are tons of parks for the kids to play (if your apartment doesnt have a play area).