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I had to use cheats twice, and both times it was in the fourth installment. The first time was in one of the single-player games (using ArtMoney), and the second time was in the final scenario of the campaign for the Bard from The Coming of the Storm (using a cheat). I didn't even finish the next campaign, but instead of using cheats, I decided to learn the game mechanics. The result was the manual I posted, "A Guide for Heroes of Might and Magic IV." By the way, I read a walkthrough of the campaign on normal difficulty, and it advises avoiding battles as much as possible (to avoid getting killed) and visiting all the obelisks to dig up the artifact. I did the opposite – I increased the difficulty by a couple of levels, captured all the cities, and overwhelmed almost all the neutrals (to avoid getting killed), and only after that did I dig up the artifact. So, learn the game mechanics. Cheat codes can be useful for purely technical issues, but not for playing the game.