How to promote a game for Android for free and as efficiently as possible?

Question

Android

Recently released game. But it does not gain a large number of installations, perhaps the problem is that it was not available after the release in a large number of countries, except for Russia and the USA. So, what promotion methods do you recommend to attract the maximum number of people to the game? I'm very interested in free promotion :)
If that's the game here

Answer 1

I never added leaderboard to my games. (
Forums, articles and public spam will give a small increase in installations. I advise you to buy installations while the game can still get into new items. I have written a little about this in the article:
habrahabr.ru/ sandbox/89901

Answer 2

Social networks are an effective promotion, in particular publics with an andoid theme, perhaps if the admins offer to post your game (like a regular post with an installation download), no investment is required. Pay for installations, but this pleasure is not cheap.
For free, I think now there are no effective methods, all the money is now needed.

Answer 3

Free - only if you are featured by Google or someone else. Other methods are ineffective, and they are described by dima_maketov and maagames.ru . from low-cost - you can try tapjoy.com.
about unavailability after the release - is nonsense. The rating in each country is different, so it does not affect anything.