Is your website hosted in Finland? You will get bonus points in Google's eyes if you are hosting in the country you are targeting. Is it on a Finnish domain name? Again that could help. This of course would do you no good for me searching from either my Philippines office, or my USA office. It will make a difference for people searching in Finland, since you will be the more local source for the information, and therefore more relevant. The quality of your backlinks is going to make a big difference on two fronts. Both on their PR, and on how relevant they are to your site. Also, if you can find other Finnish gaming forums, directories, blogs, social media, etc, to use for backlinks to your site, it could help. Since you are targeting a term which is almost certain to be searched for only in your part of the world, do everything you can to focus on your target market. Keeping all of that in mind, then it starts being a numbers game. Get more quality backlinks than your competitors, and you should start moving ahead of them. Of course the next trick is to monetize that traffic...
Not guarantee that you will be number one. But ensure that your site will go to the good position on search engine if you have many quality backlinks.