HoMM3 HD is a mod (add-on) for the game Heroes of Might and Magic 3.

the idea arose that if we try to balance the diplomacy skill in HD+ and allow it, perhaps there's a way to tweak it slightly and remove another rule to diversify the gameplay. For example, joining could be left exclusively for gold and made 1.5-3 times more expensive than it is now.

Added after 12 minutes
I'll throw in all the ideas for all the discussed issues periodically:
1. Tower upgrade: a guild of level 1 is built.
2. Minor Inferno/bugfix: in the Dungeon, native land still gives a bonus.