We've added an auto-save feature that saves your progress after you have hit "H" to begin a "Defense" Round. You can load the save from the Main-Menu. The save gets deleted if you lose your current game.
We are also working on fixing a few glitches in regards to upgrading fighters and bombers.
Please report any bugs to [email protected]
And any feedback to [email protected]
Thanks for the support,
Core Reaction Studios