No Blood

That the game contains no blood or gore. It does not mean there's no conflict - plenty of these involve combat, collisions or waves of enemies - only that none of it is depicted with the red stuff.

Yes. Coin Blitz is a horde survival game where you fend off waves of enemies, and it manages that without any gore at all. The tag filters presentation rather than genre.

Hidden Object Time Travel. There is nothing to fight and no timer bearing down on you, just detailed scenes to search through at whatever pace suits you.

No. Cartoon slapstick like Kick the Buddy is squarely in here, and several games involve shooting or combat. The tag is specifically about the absence of gore, not the absence of conflict.

Yes, all of them run free in the browser with no download and no account required. You can open any of them straight from this page and start immediately.