Manual index

Decor & Objects5 min read

Object slots

Slots keep airports performant and builds fair: every airport has a budget of object slots set by its buildable-area level. Big objects cost a full slot, small scatter costs a quarter, and painted vegetation costs nothing. This page is the whole system.

Your slot budget

The budget comes from your airport's area level (what levels are). Supporters get double at every level.

Area levelSlotsSupporter slots
Level 11020
Level 22550
Level 350100
Level 4120240
Level 5200400

Levels 4–5 are shown for reference - they are not yet purchasable.

For scale: a 10-slot starter fits roughly 10 hangars, or about 40 trees, or any mix in between.

What things weigh

KindWeight
Hero objects - hangars, towers, terminals, vehicles, aircraft, and other substantial pieces1 slot
Scatter decor - trees, brush, rocks, props, clutter, fences, lights, signs, flags, street items, furniture, people, animals¼ slot each
Painted vegetation (the Foliage brush - Vegetation painting)Free
Ground coverFree

Landmarks play by their own rules: through the prestige system they are effectively uncapped by slots - see Landmarks & prestige.

The meter

The Objects usedmeter lives in the builder's right rail and is always visible. Each slot fills in quarter steps, so scatter shows up honestly, and the readout matches: something like 9¾ / 10 with a breakdown line - {n} objects · {n} scatter (¼ each) · {n} free. The meter turns amber when you hit the cap.

The builder with the Objects used meter in the right rail
The right rail: the slot meter fills in quarter steps and ambers at the cap.

At the cap

At the cap, saving additional objects is blocked until you free up weight. You have two honest moves: remove some placements (deleted objects return to your account pool, nothing is lost), or grow the buildable area to the next level for a bigger budget (Buildable area & levels).