A prequel to Wolfenstein: The New Order, The Old Blood has more story, but less gameplay. I recommend getting The New Order, as it's got more going for it, has the best story in all of the Wolfenstein games, however the best experience is to get both, as the ending of Old Blood ties perfectly into The New Order, back-to-back.

The Old Blood focuses on a much more supernatural vibe, akin to Indiana Jones, only with more blood, sci-fi technology, and war crimes.

Rudi Jager makes a great Nazi nemesis, with Helga, the penultimate villain, being a lot less interesting in comparison. Neither of them are Deathshead, but Rudi and his dog Greta are especially memorable.

For your friends, you have "Agent One", Wesley, who teaches a clever little trick about dealing with stress, which B.J. later recites in The New Order. Your contact in the village, Kessler, is an admirable resistance fighter, but like most of the characters in The Old Blood, doesn't have much character development. The woman he protects, Annette, is a Jewish refugee looking for her sister in the decrepit and mysterious town of Wulfberg, home to Castle Wolfenstein, the main setting for half of the game, and the place B.J. has escaped once already. You also meet "Agent Two", Pippa, as well as Fergus (the latter only at the ending), but Fergus doesn't receive as much characterisation until The New Order.

Although not as interesting of a story, The Old Blood is as good as any excuse to listen to B.J. Blazkowicz monologue, and the environments of the Nazi super concrete structures are awesome as ever to kill Nazis en masse in.

If you can, get both The Old Blood and The New Order. If you have to pick one, pick The New Order, although it lacks the supernatural, its more grounded but sci-fi environment is filled with overall funner gameplay.

A prequel to Wolfenstein: The New Order, The Old Blood has more story, but less gameplay. I recommend getting The New Order, as it's got more going for it, has the best story in all of the Wolfenstein games, however the best experience is to get both, as the ending of Old Blood ties perfectly into The New Order, back-to-back. The Old Blood focuses on a much more supernatural vibe, akin to Indiana Jones, only with more blood, sci-fi technology, and war crimes. Rudi Jager makes a great Nazi nemesis, with Helga, the penultimate villain, being a lot less interesting in comparison. Neither of them are Deathshead, but Rudi and his dog Greta are especially memorable. For your friends, you have "Agent One", Wesley, who teaches a clever little trick about dealing with stress, which B.J. later recites in The New Order. Your contact in the village, Kessler, is an admirable resistance fighter, but like most of the characters in The Old Blood, doesn't have much character development. The woman he protects, Annette, is a Jewish refugee looking for her sister in the decrepit and mysterious town of Wulfberg, home to Castle Wolfenstein, the main setting for half of the game, and the place B.J. has escaped once already. You also meet "Agent Two", Pippa, as well as Fergus (the latter only at the ending), but Fergus doesn't receive as much characterisation until The New Order. Although not as interesting of a story, The Old Blood is as good as any excuse to listen to B.J. Blazkowicz monologue, and the environments of the Nazi super concrete structures are awesome as ever to kill Nazis en masse in. If you can, get both The Old Blood and The New Order. If you have to pick one, pick The New Order, although it lacks the supernatural, its more grounded but sci-fi environment is filled with overall funner gameplay.