Wolf

Throwback to the 90s with one of the most popular DOS games! Save the game whenever you want and continue from where you left even if you are out of lives. Turn on "autosave" option to save the game automatically in certain periods so that you

do not have to start from the beginning each time. This capability will provide you to try difficult levels again and again and help you finish the overall game!

Description (by Wikipedia)

The game is a first-person shooter video game developed by id Software and published by Apogee Software and FormGen. Originally released on May 5, 1992 for MS-DOS. In this game, the player assumes the role of Allied spy William "B.J." Blazkowicz during World War II as he escapes from the Nazi German prison and carries out a series of crucial missions against the Nazis. The player traverses through each of the game's levels to find an elevator to the next level or kill a final boss, fighting Nazi soldiers, dogs, and other enemies with knives, pistols, and other guns.

Description (by id Software)

It's World War II, and B.J. Blazkowicz -- the Allies' bad boy of espionage -- is a terminal action seeker built for abuse with an attitude to match. (That's you.) There's just one small problem: you've been captured by Nazis, tortured and imprisoned beneath the intricate maze of a castle where you await an inhumane execution. Now, you must do anything and everything to escape from the belly of the Nazi dungeon. Or die trying.