Maybe Advertise the app on other website a lot of people would visit like Youtube for example. And when you first start off the game it shouldn't be boring there should be some little quest for players to bring them in the game and maybe give some free content for the quest. When I first started playing Graal it was fun for the first 5mins then it got all boring and lame I would get on like one time every month and after I found out you can actually make money and buy some cool stuff I started to like the game. So maybe if you can expand this server have like lobbies example lobby_1, lobby_2 etc. and maybe just maybe we will get more players to play the game.