Diving deeper into the late game maps of Escape from Duckov will have you uncover new items that you won’t know the purpose of. You might have picked up the elusive Blue Cube during scavenging, and they start to quickly fill up your inventory space. There is a way to get rid of them, and also farm them in the game. This guide will explain everything there is to know about Blue Cubes in Escape from Duckov.
How to Farm Blue Cubes in Escape from Duckov

Equip the Cube Storage Device, then defeat enemies or dismantle electronic items to collect Blue Cubes. If you don’t have the Cube Storage Device yet, you need to visit the Cellar in the Warehouse map during Xavier’s Hidden Secret quest. Before that, get a gas mask, as the underground area is filled with toxic gas. You will also require the Cellar Key and Cellar Crossroad Key, which you will acquire through the quest.
While down in the cellar, head north, then take the east path till you reach a locked gate. Use the Cellar Crossroad Key here to unlock it and find a vendor. Purchase the Cube Storage Device from him for ₽ 5,288. Next, continue to play the game with this device in your inventory. As you keep killing high-level enemies, especially bosses, you get to farm a large chunk of Blue Cubes. Also, while exploring J-Lab, you might have picked up several random items. Dismantle them to get a chance of Blue Cube drops.
How to Use Blue Cubes

Blue Cubes are used to unlock useful upgrades from the same vendor inside the Cellar. While interacting with the vendor, select the Strange Modification option. For each upgrade you wish to unlock, you will require specific amounts of Blue Cubes. To get all the collected Blue Cubes you have so far, interact with the Cube Storage Device in your inventory. Click on the Blue Cube slot to remove all collected Blue Cubes to store them back in your inventory or storage unit, then use them up for the upgrades in Escape from Duckov.
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