In Boom Beach are there reasons to destroy all buildings?

When destroying buildings -

You get more energy which could be used for healing/bombs;
If it was a defensive building it stops hurting you.

Other than that, is there a reason (mainly loot) that one would want to destroy all the buildings in the map?

Is the answer the same for PVE and PVP?

Most of the PVE "puzzles" seem stupidly simple if there isn't a reason to destroy the buildings, you can ignore 90% of the layout.

boom-beach

Best Answer

The reasons to destroy other buildings than the HQ:

Inflict indirect damage to the HQ (explained below)
Get 3 points of Gunboat energy
If it is a defensive building, it stops shooting your troops.

Indirect Damage:

HQ gets 70% damage from other buildings destruction. That means if all buildings are destroyed, HQ should have 30% health.

Source of the info: http://boombeach.wikia.com/wiki/Headquarters

When all of the Buildings on a base except for the HQ are destroyed, the HQ will have 30% health remaining. That 70% damage is distributed evenly across all the buildings on the base, so if a base has many buildings, then each building will do less damage.

Example: A base has 10 buildings plus the HQ, so each building takes away 7% of the HQ's total health.

The only exception is when there are 3 or fewer buildings on the base besides the HQ. In this situation, the damage that each building deals to the HQ is capped at 20%.

Example: A base has 3 buildings plus the HQ, so when those 3 buildings are destroyed, the HQ will have 40% of its health left.

These rules do apply to Outposts and Power Cores as well. Indirect damage does not damage a shield from a Shield Generator. Also, a Shield Generator does not block indirect damage.

Indirect damage is able to destroy the HQ given that the HQ has already been sufficiently damaged by direct damage.