There are probably fewer players who are annoyed with 10 to 20 games to click through than players who are overwhelmed seeing the number of games in one page. There's like hundreds of them in your site. Perhaps you should only show the top games in your home page and let players search for the others.
I kinda agree. When you boil it down, except for the graphics, most of the games are the same.
However, having a wide variety is never a bad thing. Maybe an option to mark some as "favorite" and put them on top?