War of starships

The game is made in the form of a war of starships, where you play as a starship.
Your ship can be upgraded with coins dropped by enemies in battle.
Difficulty increases with time spent in combat - enemies become stronger, there are more of them.

The movement of the ship is due to clicking on the right place, the ship can only move horizontally.
There is no end game - you can endlessly improve your ship and destroy more and more enemies.