1-unit mode

[Ratburntro44]

Each tile can only hold a single army. In your turn, instead of moving armies, you distribute your reinforcements to surrounding tiles. All battles are one on one. In order to make it not completely ridiculous, the longer a unit holds a spot it builds up defense bonuses and builds up (more slowly) attack bonuses on the enemy territories surrounding.

Would be very different, but… Civ V exists.