Check out the answer from Supercell:
Boom’s build times were designed and balanced around the concept of building one thing at a time, and changing this now would upset the game’s delicate balance. Therefore we won’t be adding more builders.
FYI: 2 days, 12 hours is the longest building upgrade time (HQ to Level 20) – and 5 days, 10 hours is the longest troop upgrade time (max level Tank).
Also, contrary to popular belief, more builders do not equate to more fun! You can clearly see this in our super-scientific graph here:
note: this graph is not, in fact, “super-scientific”, but is actually a bit silly…
We decided to take the experiment to its natural conclusion and see what happens to the fun when you have over 9000builders!
This is where it gets really interesting – the fun levels actually take a sharp dive when you reach over 9000 builders:
So more builders definitely do not equal more fun! The proof is in this pudding.
note: this graph is also quite silly.
What do you think? Leave your thoughts in the comments below!