Thanks for the great advices dude : They were so insightful.
My problem is not with indexing, promoting or anything, I make games for fun, but the sudden change of instant index to many days makes me believe that there is something wrong with the system. Why some games indexed instantly, (without review of course) while some other take days/weeks to be indexed. The problem is with the indexing system, if I publish the same games from before, they are going to be indexed after some days, not instantly. Nothing changed in my games, but the timing required for them to be indexed changed for no reason.
I think games that are going to be indexed should get an estimated time-to-index. Right now I have to wait for an unknown amount of time just for my game to be indexed. (yes, you don't need to tell me waiting for indexing is not a good strategy, etc. etc. you already made that point correctly and clearly! But my problem is something else and I hope I made it clear.)
What type of tags do you generally advice me to add in my games?