Hi, I noticed that even the basic mortar ammo needs explosives, but the tech to research mortars doesn't have explosives as a prerequisite. Can I suggest you either remove the explosives from the basic ammo recipe or add them to the research prerequisites list?

Mortar bombs are the turret version of regular grenades. Regular grenades are unlocked with the "Military 2" technology.

That is, "Military 2" is - researching basic explosives

The "Explosives" technology unlocks more powerful explosives, which allows you to create cluster grenades and cluster turret bombs.

Plus, in addition, there are separate technologies for improving grenades and mortar bombs.

That is, in vanilla everything is well thought out.

But, thanks for the message! In the next update I will remove explosives from the basic bomb recipe.