I understand that online translators are bad and that they are 95% incorrect. You should only use online dictionaries for vocabulary. I understand that grammar can be difficult for you, as Chinese is not a grammatical language. So for now, know this; "There is" is for a singular noun. "There are" is for pluraly nouns, like people. Indulge is not the right word here. You want to say, "Are there a lot of people who like computer games or just really like to be on the computer?" Don't worry, I have trouble with Chinese translations, too. The two languages are very different, and so you just need to keep practicing.