This Mod is basically a bit modified, more difficult and overall a darker version of the original levels. Only Training, Fort, and Cooler are included finished in this version and you can also find Carrier and Archive unfinished but ready to be modified in the editor (contact me in this case please, you will find my email address at the READ_ME file). This is the 0.2.0 version.
Most of the stuff you need to know is inside the READ_ME file which please take the time to read. Installation is the common process of placing the "Dark_World" folder inside your "Mods" folder in your game's main directory.
Ευχαριστώ για το χρόνο σας, ένας πατριώτης από Κρήτη εδώ.