If I am at home where it is quiet and dark ( blinds and curtains closed ) I don't use any noise but if I am anywhere that I can't have quiet darkness I will require either music or waves/rain/stream nature sounds
Depends on what you are interested in doing. For my niece that wanted to be work in forensics it was a requirement but the amount of college debt her degree required her assuming ( and she just got a Masters Degree ) is still being paid off 8 years later. She is now making a little over 70k/year...
Just 3? Hmmm,
Minecraft as it is always being updated and modded and you can set your game to be whatever type you want.
Table Top WH 40k as I know multiple people in my area that play ( but dang do I hate painting those minis so I went Imperial Knights
Advanced Squad Leader table top game...