Giten Megami Tensei: Tokyo Mokushiroku
偽典・女神転生 東京黙示録

Developer: ASCII
Year: 1999

Description: Tokyo was destroyed by ICBMs, resulting in nuclear holocaust. Several people were evacuated to an underground shelter, guarded by Devil Buster Special Forces, created by Hatsudai Katsuragi. The protagonist is Ayato Katsuragi, born and raised in the Hatsudai Shelter who wishes to follow in his father's footsteps and join the Devil Buster Special Forces. [From Megami Tensei Wikia]


Comes unpatched but with the required files

(Thanks to Sirius for the collaboration!)