Promotion of the game (also for the European audience)?

Question

Google Play

Hello.
I am new to game development, currently making my first game for GooglePlay. The game is simple - 2D runner. Having looked in the search for 2d runners, I found that there are mainly about 5 large games in the top - the rest is slag. With all my self-criticism, I am sure that my game will be better than those that are slag (more features, beautiful graphics, a nice looking GUI, a large selection of characters, and the like).
But I don't know much about the GooglePlay system. All I found on the Internet is that on the first day you need a lot of installations of the application, and that every 3 days the number of downloads at least does not fall.
Now the questions themselves. How to attract users with investments in advertising 0 rubles? This is understandable - tell your friends, acquaintances, classmates - the exhaust will be a maximum of 20 people in 2 days (which, by the way, is already more than some of the installations of applications in the top "2d runner"). Another way is forums. Here I will touch on the issue of the European audience. On which English-speaking forums can I post a review of my game myself for free? Or are there free European analogues of GooglePlay? If you know at least one, please write in the comments. The same question on Russian forums and analogues of GooglePlay.
Also a question on the algorithm for raising the game on demand. What is the best thing to do - collect a bunch of forums, prepare friends and catch up with as much traffic as possible on the first day of release, or the second option: distribute friends and each forum / site (which I hope you drop) for 3 days. That is, in the first 3 days, use 5 friends and 1 forum, for the next 3 days, use other friends and a forum. But "three days" traffic will be quite slow and I don't know if speed is important to Google.
I would also like to finally get an answer to the question, how much will earnings be for 50 clicks on video + interstitial advertising? Traffic, I think you understand, 60-70% Russia, 30-40% Europe. I will use Appodeal. It's just that someone says that $1 for 100 clicks, someone says that $5 for 50 clicks - there is no specific information on the Internet. So, if you don't even know a single forum where you can show your game - unsubscribe about approximate income, I will be very grateful.
Thank you.

Answer 1

channels are not limited to forums
, but everything that you can do for free - do it on the first day, it will stretch for a couple of weeks anyway, after a couple of weeks - an update, etc. and again through the channels