I think that the storage chambers for lairs should be revamped somewhat.
Currently I find no real incentive to use any storage chamber above T2 (except for an occasional issue where a T3 provides a real bonus due to otherwise lost space).
Currently:
T1: 1 cube, bulk 25000
T2: 2 cubes, bulk 40000
T3: 4 cubes, bulk 55000
T4: 6 cubes, bulk 70000
T5: 6 cubes with twist, 85000
T6: 9 cubes with a twist, 100000
I think if possible a change could be made in the following direction.
No change of the layout or chamber size is made. Except maybe offer the possibility of a mirrored T5 and T6. (I could never use them anyway since the entry point was always facing the wrong way.)
Bipeds can easily upgrade their storage options by building the next tier of silo with exactly the same footprint and without the need to build a passageway to it first that needs to properly connect to it.
Since lairs are built in 3D instead of 2D, I would allow for some lenience into this department. And have storage chambers have at least equal bulk per volume taken. Since bulk cannot be going above 100000 usable bulk for 1 stack (9999 * 10 bulk (except lair components 120, however most items are 10 bulk or less)). I would suggest that we up the stacks allowed in a storage chamber. To make it easy 1 stack per Tier.
This could result in the following: 1 cube = 25000 bulk, aka current T1
T1 (1 cube): bulk 25000, 1 stack
T2 (2 cubes): bulk 50000, 2 stack
T3 (4 cubes): bulk 100000, 3 stack
T4 (6 cubes): bulk 150000, 4 stack
T5 (6 cubes but with a nasty turn): bulk 175000 (need to have some difference with T4), 5 stack
T6 (9 cubes but with a nasty turn): bulk 225000, 6 stack.
Building only T1 will give you still the most possible stacks, however there will be a trade-off to the passageways you will need to build to them.
However with the proposed changes you can do away with some of those corridors but loose one or more stacks in the process. I think this will benefit the higher tier rooms somewhat and offer an incentive to actually use them.
What do you think?
Salis