How stupid is this idea: One single river in the map for a 117 Egypt DLC.
Imagine an Egypt map where ships only travelled through the river. Ship trade is faster down stream, slows down by 50% up stream.
There are no Islands, instead, there will be zones that are enclosed and limited by terrain and these zones are all near the river. You can’t build on sand but can travel through it, setting up marked trade routes.
Troops can travel through sandy terrain, but their maintenance cost go up the farther they are from river or a main source of water. A new unit is introduced: a wagon. This wagon carries supply through the desert. If the wagon falls, troops slowly lose health after a short period of time.
Map features: An oasis sometimes show up in the map randomly and can replenish health. This oasis has a 50% chance of being a mirage when a unit comes close to it.