This game is over 20 years old but was well ahead of its time. For those who have never played or too young to remember: The premise is that you are a failed former secret agent living in a roach infested London flat in 1942 because you left your cabin on the titanic to meet a former lover, and that is when word from your contact came. As a result you failed your mission and are directly responsible for WWI and 2. While in your London flat a bomb sends you back to the Titanic so you get a second chance to complete your mission and prevent both World Wars.
The endings can be worse than when you started the game. You can have a nuclear Germany. Endings where the soviets are sweeping through all of Europe. Communist Russia. Two different "Nazi fury" endings.