Do you think it's possible to play this game with more than 2 players ?
With only 1 game and the rules included, it would not work. With 2 games and all the dice, there is probably a good game in there, but some adjustment would need to be made with attacking. It might be something like this: when taking an attack die, you attack the person to your left. If you choose the person to attack, it would be too mean and very easy to knock people out by ganging up on them.
Also, the game will slow down considerably. I designed it to be quite quick, less than 30 minutes. 3-4 people would really make the game drag and that is a main reason for the 2p decision. In the end, the game is not supposed to last too long.
That said, I hope to try a 3-4 variant, but it would most likely require two sets of dice.