step into the boots of Private Jacob, an American soldier caught in the fury of a World War II bombing raid. Desperately seeking refuge, Jacob stumbles upon a terrifying mysterious bunker, which turns out to be a demonic time portal.
The video you provided is early footage of the game "Forgotten Bunker 1939". It is important to note that this footage is not representative of the final product. The game is still in development, and many aspects, including graphics, gameplay mechanics, and overall polish, are likely to undergo significant changes before the final release.