Forgotten Bunker 1939 Windows game

you are WW2 American soldier named Private Jacob. Amidst a brutal World War II bombing raid, Jacob seeks refuge in a mysterious bunker. But as he opens the bunker door, he triggers an otherworldly demonic anomaly that changes his fate forever.

Suddenly, Jacob is thrust into a different, nightmarish future where monstrous anomalies As he struggles to survive in this surreal, dystopian world, he notices a terrifying transformation his hands are turning into demonic, bloody hands you start to see you veins are bloody purple red and he has no idea why.

The bunker reveals itself to be a time portal, transporting Jacob to an unfamiliar and horrifying era. Each Demonic portal he enters takes him to a different, terrifying place, each with its own deadly challenges. Jacob must navigate these strange environments, battling monstrous creatures and deciphering cryptic symbols to find a way out.

The demonic mark on his hands is killing him and feeding on him without he knowing, but Jacob is determined to uncover the truth behind his transformation and find a way to reverse it. Along the way, he encounters other skeleton soldier WW2 German soldiers and unravels the dark secrets of the world he's trapped in.

Can Jacob survive the horrors of this twisted future and reclaim his destiny? Or will the demonic anomaly consume him entirely?