Heroes 5.5 WarGame Edition - Tactical Edition.

It could simply limit the housing capacity – storing legions in a building is indeed absurd (it’s simply physically impossible).
For example, the limit could be set to 6 basic increments (i.e., the increment for three weeks with a built fortification).

There might be other numbers (depending on the implementation), for example, building costs could be 6 times cheaper in gold and 3 times cheaper in resources (instead of 10 and 2.5).

Regarding the “burning” mechanic, the purpose of its introduction is not realism, but rather to increase the role of the economy. The classic gameplay is: in the first weeks, all resources, including gold, are spent on developing the city, with minimal unit purchases, and only towards the end is the entire army bought.

Now, the idea is that if you fail to manage your resources and build the necessary buildings within a week, you effectively lose production capacity and part of your army. The same should apply to gold, so that the player strives to spend both resources and gold in a balanced way. A shortage of gold should be as fatal as a shortage of resources. You can’t say: I’ll build housing for all these dragons in week 5, and let them have the increment as if those 5 lost weeks had passed, because in the end, I managed to get the resources for them.

As for the suggestion to allow a maximum of 6 basic increments – this will not actually affect the game, since all troops can be bought within 3 weeks, especially when the duration of the entire game is less than 3 weeks.

Imagine a strategy game like Starcraft, where you build a lot of production buildings, but you don’t have enough resources for constant production. And what, will all the troops just accumulate, waiting for the appointed hour when you buy 500+ warriors at once?