At first glance it kind of looks like BECMI but we played it on a grid using the Temple of Elemental Evil and it was small things like the cleave rules and the proficiency system that made it different. A little bit of power creep over classic BECMI but the party was 5 instead of 8 in size.
ACKs has the simplicity of BECMI for the most part with some character options from 2E and 3E but without the bonkers power level problems mostly limited to +1 to hit, AC or damage not some out right abuse.
We are trying out 5E ATM but I want to play ACKs again house ruling in BAB and ascending ACS in the same format as WoTC D&D, Pathfinder, Castles and Crusades, Basic Fantasy etc.
Here is 2cp from someone who sucks at designing rules.
ACKS is a Porsche.
I don’t quite know how every bolt and gear fit together, beyond a basic understanding of how all explosion engines work, but that doesn’t mean I can’t appreciate the craftsmanship, the quality, the attention to detail.
Hopefully, the more I drive it, the better I’ll appreciate it all.
I found something out and I am curious if it was intentional.
The weighted average wage of human mercenararies, non-veteran, weighted by percentage who can become each troop type, is 15.87.
The weighted average wage of leveled characters, weighted by frequency in the population (including level 0 characters who make up 91% of the population) is 15.88.
This is close enough that it makes me suspect collusion and roundoff error.