Nihilirian Rebirth - techs + menu package. To play it, download the latest Glest.org installer. Install for the corresponding OS. Then copy the extracted "techs" and "data" folder to the main installed Glest Folder. Start Glest. On the bottom right corner when on "New Game" screen, choose Tech Tree - Nihilirian. Choose between Arcturus and Sirius. Enjoy and don't forget to comment, rate and give feedback. Thank you.