Problems with Heroes of Might and Magic IV.

I tried it myself a long time ago, and it's a great thing! I can also share a tip on how to overwhelm neutral creatures without losses: Take a hero (with decent spells), attack the neutral creatures, and keep attacking them until reinforcements arrive. Then, use "Portal to Town" or just run away. Repeat this until you win (it's very helpful in the early stages of the game when you need to defeat level 4 creatures).