I've found it too unbalanced, pawns evolve into the exact right thing to lock me every single time, not once I have seen an evolution which hasn't been imediatelly useful for a checkmate.
Game can't recognise a checkmate/stalemate, when a player has no moves, no souls and cannot kill the piece which blocks him, he should lose, making the last move only to die makes no sense.
The game let's me kill pieces even if it kills me, it should tell me if a piece behind the one I'm gonna kill is gonna kill me back instantly.
Another complaint is about the spread, when one is side by side with a piece and then there's another enemy piece a couple squares away and in the same direction as the piece adjacent to you, how would the shots go arround the piece which is close to hit the far one? I've lost count of how many times I've died to an adjacent piece after my shots spread all over, even without using blunderbuss or extra barrel.
nonetheless, outstanding idea, pretty fun game, despite all my anger, it kinda served as more incentive to win :)