Addicted
This is honestly one of the most fun games on mobile. Completely free, no forced ads ever. Extensive customization of ships abilities and effects. Quite challenging at times, but very rewarding as you progress and get stronger and stronger. The dev has put humor into the game in a good way. There are some optional micro transactions for money and yellow squares the other currency in the game. I have probably put close to 20 hours in this game already in the last week and a half not needing to buy anything. But I’m definitely gonna buy some stuff in the game to support the developer. Awesome game come, check it out.