Not every map has everything available for every egg, or you might want to increase or decrease the costs.

I did this once before but I lost my code so I am placing here in hopes to find it again if I need it, I could not find this anywhere but I might have missed it. Anyhow here is the code with the default values.

Just copy and place at the end of your game.ini file. (A suggestion. If you don't change costs often then you may want to change PrimalItemResource_Element_C to PrimalItemResource_ElementDust_C and check to make sure it is working and then you can change it back if you want.)

ConfigOverrideItemCraftingCosts=(ItemClassString="PrimalitemConsumable_Egg_IndominusRex_Fertilized_C",BaseCraftingResourceRequirements=((ResourceItemTypeString="PrimalItemResource_ApexDrop_AlphaRaptor_C",BaseResourceRequirement=3.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_ApexDrop_AlphaRex_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifact_12_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifact_11_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifact_01_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_Element_C",BaseResourceRequirement=50.000000,bCraftingRequireExactResourceType=False)))
ConfigOverrideItemCraftingCosts=(ItemClassString="PrimalitemConsumable_Egg_IndominusRex_Fertilized_AB_C",BaseCraftingResourceRequirements=((ResourceItemTypeString="PrimalItemResource_ApexDrop_Basilisk_Alpha_C",BaseResourceRequirement=3.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_ApexDrop_ReaperBarb_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifactAB_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifactAB_2_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifactAB_3_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_Element_C",BaseResourceRequirement=50.000000,bCraftingRequireExactResourceType=False)))
ConfigOverrideItemCraftingCosts=(ItemClassString="PrimalitemConsumable_Egg_IndominusRex_Fertilized_SE_C",BaseCraftingResourceRequirements=((ResourceItemTypeString="PrimalItemTrophy_AlphaWorm_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemTrophy_AlphaWyvern_C",BaseResourceRequirement=3.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifactSE_02_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifactSE_03_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifactSE_01_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_Element_C",BaseResourceRequirement=50.000000,bCraftingRequireExactResourceType=False)))
ConfigOverrideItemCraftingCosts=(ItemClassString="PrimalitemConsumable_Egg_IndominusRex_Fertilized_EXT_C",BaseCraftingResourceRequirements=((ResourceItemTypeString="PrimalItemResource_ApexDrop_AlphaRex_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_RareDrop_CorruptHeart_C",BaseResourceRequirement=30.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifact_Extinction_DesertKaiju_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifact_Extinction_ForestKaiju_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemArtifact_Extinction_IceKaiju_C",BaseResourceRequirement=1.000000,bCraftingRequireExactResourceType=False),(ResourceItemTypeString="PrimalItemResource_Element_C",BaseResourceRequirement=50.000000,bCraftingRequireExactResourceType=False)))