A nice rogue-like about vampires that you upgrade each round to progress. Ireally like the pixel art, and it´s great that you can set the game speed right from the start. So far I´ve only used the 0-cost units. Just an idea/suggestion: why can you already buy the stronger units at the very beginning, when they´re basically unusable that early - too slow, and they die too fast? It might feel better if those units unlocked automatically at later levels (say level3 or 5) instead of having to be bought.  Blood being the resource for upgrading an buying units of course makes it a strategy game - but the second and third units just aren´t worth it in the early levels. The second unit is too slow, an the medic can´t heal fast enough to keep up. All in all, the game has potential. Best regards, Grobi85