Save the Earth! - The Incremental
The Earth is in great danger! The Zakos, an alien species with a highly advanced technology, launched an attack against us.
You are the supreme commander of the Earth's army and the survival of the planet relies on your shoulders...
"The incremental" is an excellent idle game (category popularized by games like "Cookie Clicker" where the goal is to increase a resource to infinity), which has some original features such as the autoclick. Destroy the aliens, by hovering your mouse over them, to collect resources then buy increasingly sophisticated troops to increase your RPS (Resources per Second). As you gain experience, you will unlock research points; use them wisely to improve your troops. "Save the Earth!" also proposes a military rank system which will get you a permanent bonus if you reset the game.
In short, this game is one of the best of its kind and you can even export a backup to continue your game on any computer.