The Team B want to thank you for all your good comments :)
Also they want to inform you on topics that they have seen in some gameplay video.
1) The game world is divided into 3 sections, the central part where you start the game is the first section, the destroyed city to the south once past the bridge is the section 2 and the 3rd section at north will be added later. So the map that you find at the beginning include only the first section. The section 1 and 2 are actually available.
2) The game seems difficult but it has been done so that you need to progress step by step, you need to explore around and come back save your game and make your improvements. And you can progress a little further each time.
3) To put gas in the generator, it is necessary to improve the bunker and unlock the interior garden that will help you to create biodiesel for your generator.
4) The main purpose of the game is to create a vaccine and this is done in the menu of improvements, all the game revolves around the menu of improvements, this way that the game progresses.