I simply LOVE Free Slots Hub for the ability to play free slots no download (and believe me, when you're a student it's reeeeally helpful). A friend recommended me this slot website and I was hooked ever since with the amount of games to choose from and ability to play from every platform and software. You know, sometimes you can find some really worthy service but don't have the software needed.
I know some people complain they can only play it on the browser tab, but I don't see any problem with it - it runs very smoothly. Especially IGT video slots and NetEnt 3D slot games - you won't find them for free in that amount often.
Sometimes I wish though the games have better graphics. Or maybe they just wait until I finish the study and start working for them haha.
All in all, I think this is a place for those who just love gambling but not spending. The students should definitely try this as it's better than the video games imho of course. Plus, not everyone can go to Vegas for a proper gambling experience but this is the closest you can get for free from your home without flying to Sin City.