-# I try not to suggest anything that would require a major overhaul under the hood of how the game works. However, the following idea might require such a rework. Yet, I will still suggest it as it is a base to further ideas.
Leave a Troop Behind ON/OFF
This is a modifier option to toggle the requirement of leaving a troop on previous territory.
This would make it possible for a territory to have no troops.
This may be a controversial change to what has been a core element of Risk for so many years. I do believe it would be interesting to see how this may change and enhance the gameplay of Risk. This could open up new strategies and enhance existing ones.
Would zero-troop territories be neutral?
Are dice even rolled on a no-troop territory?
How do bots or zombies interact with them?
What are your thoughts?