Buildings

Buildings are a special kind of item in the game. In addition to their on map activation action, they provide resource storage. There are 3 buildings: Brothels, Treasuries and Crystal Warehouses. As items, Brothels have passive cooldowns while Treasuries and Warehouses have active cooldowns. You get more buildings by buying them in the shop for Crystal or Rubies. As they are items, they can of course be merged to get better versions. After purchase, they start as non-mergeable building sites that are workable items. Unlike most items, buildings start at Tier 1.

The price of buildings goes up with each purchase and has no known capping. The prices sometimes reset and it is claimed, this is not a feature but a bug. Trigger for the reset is unknown. Since the prices do not account for sold buildings or merge 3 instead of merge 5, merges should be done carefully and buildings not be sold, in case the developer "fixes" the situation. The impact of non-resetting and non-capped building prices is less than might be assumed initially, since once you have some T8 for storage, you might want to farm your currency with nymphs anyway. Note: nymphs do account for bad merges, cannot be sold and can be aquired through other means.

= Brothels =

You need Brothels to regenerate the stamina of nymphs. If a nymph runs out of stamina, she flies to a brothel. If a brothel has resting nymphs inside, after the timer is up, the brothel puts out a fully rested nymph. There is a soft capping of 15 nymphs on screen, so nymphs might wait in brothels fully rested. Each work or harvest costs 1 Stamina. Brothels have passive cooldowns, meaning that they only drop items if there is more than 1 empty available tile around them.

Levels, Drops and Rest Cooldown
= Treasury =

Treasuries increase Nymph Coin storage and have active cooldowns that generate Jewelry with the exception of highest tier; T9 gives only storage and once a bunch of Nymph Shells (as all Legendary Producer Items).

Levels, Drops and Storage
= Crystal Warehouse =

Warehouses increase Crystal Bricks storage and have active cooldowns that generate Crystals.