Space STG II - Death Rain is a sci-fi real-time strategy (RTS) game for Android devices. It is a continuation of Space STG, the finalist of the Advanced Computer Development Competition II (ADC II) competition. This is a demo version with 4 free missions.

In this game, you can choose from 8 different ships, each with their own unique abilities and characteristics. These ships include the Transporter, Fighter, Warrior, Rocketer, Warship, and the MotherShip. Each of these ships is capable of upgrading to a more advanced version, which will improve their capabilities and make them more powerful.

The game is set in the future, where mankind has discovered an extra-terrestrial life. This discovery has caused a war between the inhabitants of the Earth and an alien race. The main character, the player, will be the commander of the Earth's space fleet, which will be used to explore the solar system and fight against the alien race.