EARTH DEFENSE FORCE: WORLD BROTHERS is now available, offering a new installment in the EDF series that attempts to save Earth from invading aliens with the power of voxels. This is available for PC, PlayStation 4, and Switch, and the Windows edition can be found on Steam. Here's a Launch Trailer and an explanation:

-A New Fight on a Square Earth
A new EDF adventure begins! Only this time, the action unfolds in a parallel world where the Earth is made of digital blocks. This world has befallen into chaos, as the once peaceful square Earth has been shattered into pieces. Shape aside, it is an Earth nonetheless which needs to be defended. It is now up to the EDF to restore peace to the square planet.

-Assemble Your Own Team
The Earth has been shattered into pieces. EDF soldiers are fighting desperately on their own in various countries around the world. Rescue these soldiers to have them join you, and assemble your own unique team. Each mission can be attempted with up to 4 teammates. Switch among your teammates as you go, making use of each character's unique traits which shall prove useful in battle at different times.