Inventory Capacity

Inventory capacity is a Mecha upgrade that increases both the player inventory and the number of logistics slots available to the Mecha. It is one of the most practical progression upgrades early and mid game, because it directly expands how much material can be carried between production chains, construction sites, and remote locations.

The upgrade is tied to the Mecha core level system, with each level raising carry space by one or more rows, and in later levels by whole columns. The logistics-slot part is only visible after unlocking the Distribution Logistics System. The logistics slots have a one-item-per-slot limitation, but they let you store items that are not needed immediately, which frees inventory space for active building and transport work.

The upgrade levels are as follows:

• Initial: 40 inventory capacity, 4 logistics slots, 2x logistics slot stack multiplier
• Level 1: +1 row, 50 inventory capacity, 5 logistics slots, requires Mecha core Lv.1
• Level 2: +1 row, 60 inventory capacity, 6 logistics slots
• Level 3: +1 row, 70 inventory capacity, 7 logistics slots, logistics stack multiplier increases to 4, requires Mecha core Lv.2
• Level 4: +1 row, 80 inventory capacity, 16 logistics slots, logistics slots gain +1 column, logistics stack multiplier increases to 6
• Level 5: +2 rows, 100 inventory capacity, 20 logistics slots, requires Mecha core Lv.3
• Level 6: +2 rows, 120 inventory capacity, 24 logistics slots, requires Mecha core Lv.5
• Level 7: +2 columns, 144 inventory capacity, 36 logistics slots, logistics slots gain +1 column, logistics stack multiplier increases to 10

Each upgrade adds only a modest amount at first, usually one to two rows at a time, which means every level noticeably increases how many stacks can be carried. In practice, this makes a big difference when moving building materials, fuel, and production components across large distances. If inventory capacity still feels insufficient, the usual issue is carrying too many raw materials by hand; in that case, it is more efficient to build production lines for commonly used structures and transport finished goods instead.

The logistics slots are especially useful for holding items that you do not need right away. Since they are separate from the main inventory, they act as a buffer for materials you want to keep on hand without cluttering your active carry space. This becomes much more comfortable once the higher levels add extra columns, especially at Levels 4 and 7.

In normal inventory use, items can be clicked and dragged between slots, and materials can also be inserted manually into storage or other inventories by moving them onto the correct UI position. If a building is held in hand, it can even be placed directly by moving it to the proper location.