The starting amount for farm is 4 slots, the “Upgrade Farm” allows the player to increase the amount of Robots you can have by 1 per upgrade. Limitation: The player can use up to 4 Miningbots per land regardless of having more slots, ie the upgrades are intended only for NFT Robots. Each upgrade increases your terrain's capacity to have 1 more NFT Robot. The starting price will be 10k/20k/30k ores up to 3 updates.