Idle Invaders is a free Android game developed by Pedro Navarro. It is a casual shooting game that challenges players to build their own empire of cannons to protect the universe against invaders. The game's objective is to discover different worlds and unlock new technologies and cannons to protect them.

The gameplay is simple and addictive. Players tap the screen to shoot bubbles and blast their way to victory. The more bubbles they shoot, the more coins they earn. These coins can be used to upgrade their cannons and unlock new worlds. The game is designed to be played in short bursts, making it perfect for casual gamers who want to kill some time.

Idle Invaders is a fun and engaging game that will keep you entertained for hours. It's easy to pick up and play, but difficult to put down. If you're a fan of idle games or casual shooters, then this is definitely a game you should check out.