Free embeddable games for kids

Curious if anyone knows of any free kids games that I can embed in a site that I’m doing for my kid and one of her friends. They’re 6 and 8 years old. Nothing resource-intensive - just want a fun distraction to add to the page. I’ve googled some but I don’t know what are just ad traps and was curious if anyone knew of a good/safe place to send me.