In that prologue, you'll learn about the daily life of your character, whose routine includes waking up to monsters in his face, having to fight creatures of all kinds, and climbing trees for hours just to find food. And this, of course, isn't even the most difficult thing you'll have to face.
Once the game really begins, Iter Vehemens ad Necem has exactly what you'd expect: turn-based combat, a traditional interface, classic but decent graphics, and, of course, permadeath. The problem is, as you advance, the game will try to kill you however it can.
That said, Iter Vehemens ad Necem also includes some new features that make it stand out even more. For example, you can recruit allies on your adventure in the hopes that they will help you survive a little longer. Also, oddly enough (though it does makes sense), the game has a 'vomit' button.
Iter Vehemens ad Necem is a very fun roguelike that, despite being relatively accessible, is still super difficult. It's nevertheless a great gaming experience for fans of the genre.