B19 version is here.
[B19] Cheap Mortar Shell

Now I confirmed the contents of the B18 version of "Combat Extended", but if you introduce CE, you can see "High-explosive shell / incendiary shell / EMP shell "will automatically be converted?
However, because antigrain warhead is not supported, it may be impossible to create.

As I am currently participating in the "Unstable build of 1.0" test, I am unable to modify the 0.18 version.

@TheJesseSar
Hello. I am sorry, I have not created a patch corresponding to "Combat Extended" mod.

[Announcement]
Added file download guide for Non-Steam to Mod description.

random fire events are the worst in rimwrold especialy in starage/batery rooms because they spread too fast to manage unlease you mobilaze your colonists fast

and, Chemfuel blows the surrounding like a bomb when igniting, so please pay attention to the fire. Especially electric shorts put the 9 surroundings in a fire state, so be careful when constructing power conduit in the storage area.

I say the best u can do vanilla is to go in a jungle get bomalopes and mountainous to have resources, i didn't know the milking chemfuel thing thx.

i had to break it into pieces cuz it was more then 1000 characters LOL

Trading is quite hard in rimworld profitable because they don't want to let you exploit it like continuosly selling and rebuing stuff for profit( meat sell it for 5 and buy for 3 for example) but still if you are like me and like focuse production like i have 4 alpacas that make 400 wool total if you also make cloths that's eazy money plus i am in a jungle which eaquals infinite grass and growing.

yea, i always thought about creating a second colony for resources but never got to, for example going into a very mounatinous and have a lot of mining and constant caravans but i see it realy hard for all the moving a lot of managing and plus you might have to asign somo people just to move around from your colony.

The thing is that you can send the boomerats themselfs just to go there, a bomalope just selftamed once and a just made an animal are on some insects (from caves) and when they killd it they just burned themselfs and the nest. But still it is a posible solution realy and a good one.

@whitefox
Certainly, considering the low accuracy of the hit rate, it may be natural to think that it is difficult to create it cost-effectively.

The best solution may be to send a caravan to the base of a friendly faction, to trade, to purchase shells and take it home.

Also, in B18 you can harvest chemfuel in large quantities like milk or muffalo wool by taming boomalope. However, can not avoid shortage of steel. For example, you can create two colonies, mined on one side and brought home or buy steel in trade.

well thx,i will sure use it but still i would say that they are still to expensive because of the acuracy/damgae the makelike when it was just like 5 steel it was realy worth it but now... i would say something like 7 steel 2 or 3 chemfuel just to not make them that chep but still 20 and 10(vanilla) its not wort.

I felt the necessity by your question, so I added a description of the cost to the explanation. Thank you! :)

@whitefox
hello!
[In vanilla / cost per 1 shell]
high-explosive shell: 20 x Steel, 10 x Chemfuel
incendiary shell: 5 x Steel, 20 x Chemfuel
EMP shell: 5 x Steel, 1 x Component
firefoam shell: 25 x Steel
antigrain warhead: Impossible to create

[In this mod / cost per 1 shell]
high-explosive shell: 12 x Steel, 6 x Chemfuel
incendiary shell: 3 x Steel, 18 x Chemfuel
EMP shell: 3 x Steel, 1 x Component
firefoam shell: 15 x Steel
antigrain warhead: 20 x Steel, 2 x Component, 1 x Advanced Component

It is about 60% of the cost of vanilla.

how cheaper is it? i woun't gevi that much...