Lycerius said he tried destroying or allying with the two remaining countries, but it had not helped.

Apparently, most of the world's population has died due to lack of usable land, and the engineers and military forces cannot make any improvements because they are working on supporting the war efforts.

Civilization II was released in 1996 by MicroProse. It is a very detailed simulation and turn-based strategy game that begins at the dawn of the world's civilisation, and continues throughout history.

Players have to fight wars, develop technology and forge peace treaties with other nations. While the game ends in 2020 AD, you can continue playing into the future indefinitely.

Lycerius said he has been transferring his save file from computer to computer and continuing the old game off and on for 10 years. Reddit was so captivated by his story that it asked him to upload his save file so the community could try to crowdsource a solution. A new subreddit has even been dedicated to this research.