I am back. I never ended thinking about an RTS contest idea, so here it is in details:
* supposed to be a
team challenge - bot may be too hard to be made by one person,
* not real RTS - I would say it is
Step Time Strategy - similar to ants,
*
1 turn would be made of move order and action order, like move 1 hex further and attack an enemy,
* played on
hex map,
*
3 resources - food, wood and iron
*
winning condition - killing every enemy unit and every building / killing every worker and base building if got amount of units advantage
Neutral objects:

- basic land hex

- tree - source of wood, needs to be cut down by workers

- tree - ready to be gathered by workers

- water - impassable terrain

- fish - source of food - gathered by workers

- deer - source of food, needs to be killed by workers

- meat - source of food, dead deer, gathered by workers

- iron - last resource gathered by workers
Structures:

- house - increases population limit

- farm - source of food, grown by workers, worker can stand on it

- mill - workers can store resources here

- stables - you can hire cavalry here

- archery range - you can hire archers here

- barracks - you can hire knights here

- base - you can hire workers here, workers store resources here
Units:

- worker - gathers resources and builds structures, 1 hex/move, cost - food, gathers 1 unit of resource/action, able to carry max 10 units of resource of one kind, can't carry fish and wood for example, can't carry fish/meat/wheat combinations, drops (destroys) carried resource if starts to gather something different

- knight - durable melee combat unit, 1 hex/move, cost - food and iron

- cavalry - swift melee combat unit, 2 hexes/move, cost - food and iron

- archer - fragile long range combat unit, 1 hex/move, cost - food and wood

- edges describe units origin, green for neutral
Example map:

- how it is supposed to look like
That would be all for now. I encourage you to discuss this idea.
Adrian