The theme of the actual mod Descent into Darkness is “They have destroyed your complete life and everything. The theme of the game made me fall in love with it.
You will also learn and try to develop new tactics to fight with enemies or to safeguard yourself from them. The new levels and the new weapons available in this version keeps users enact and active for a longer period of time. Not only this features but it also has a feature which will allow you to make precise i.e correct calculations to near pixel-perfect accuracy and lastly, it is available in a variety of increments. If the words confused you, then you must surely install the mods and observe it. The extension basically adds more levels to the Rebel pursuit indicator on the sector map screen, thereby permitting you to more easily gauge how far the fleet will advance after a proper amount of jumps and if it will overtake a certain beacon.
So yes it is a great example to show how small things can lead to big changes. What does the name suggest to you? It is an extension of something.