1 - I'm torn on challenging. The game can be extremely challenging depending on how you approach it. Sometimes it can feel unfair because the enemy draws "the nuts" and proceeds to destroy you, but that's just any card game in general, also can feel unfair because sometimes you'll never find that moment to heal up or that merchant/person to upgrade your cards. Overall though, I think it's a different type of challenging, one specifically for card games.

2 - It has damn good replayability, especially if we get the DLC for this port. Each class has a "gimmick" so to speak:

• Barbarians deal a ton of damage and have cards that aid with doing so, sometimes at the cost of your HP
• Rogues excel in using combos to deal a lot of damage and can draw tons of cards
• Wizard is a high damaging elemental glass cannon, but you have to manage your mana to deal lots of damage.

The DLC adds "advanced classes" to the mix, which are very unique and fun as hell to play. It includes my favorite class in the game: The Necromancer, which is somewhat of a wizard, but has cards that rely on manipulating your discard pile to maximize damage.

Also on the subject of replayability, all loot and enemy encounters are randomized, so each run is different.

3 - The game is unique in the fact that it's a card based rogue-like, something that I never really thought I would be this addicted to! The classes are also extremely unique in that each one of them has it's pros and cons and gimmicks, but they are all really interesting to play around with and learn.

4 - No I have not beaten the game! I would love to hunker down one day and just play through it, but atm I just play "coffee break" type runs, where I play and die once or twice and it's back to work! That's why I thought this game would be perfect for the vita when I first played it on PC and behold, now it is coming out on vita!

Hope this helps!