I just published a new game today and it doesn’t appear in research. I did everything to be eligible for indexing but it isn’t working.

All my other games used to appear in research but now they don’t show up anymore

You just published Charm's Pursuit two hours ago. On the day before New Year's Eve. Please wait. As for Failing Snails and Somniphobia, it looks like the recent changes you made placed them back in the review queue. There's probably nothing to worry about.