If you are short on ratings and need some more to get ranked the best way to get ratings is to PLAY & RATE GAMES CREATED BY OTHERS! That way you can raise your game in "Smart" ranking so it will be visible even on the main page of Ludum Dare! You get some extra points for leaving a comment!

IMHO asking for getting ratings when you gave less then 20 ratings by yourself is selfish.

So don't be selfish. Play games made by others. Game jam is about making games as much as about giving & getting feedback.

If you already have more than 20 ratings but still struggle to get ratings, let me know down in comments.

Cheers!