I have seen mods be able to do this but never in vanilla Minecraft. This would mean you can have up to 61 inventory slots (63 minus two slots. Minecraft ; 2, Monthly Downloads; Supports: ; , Total of the extra slots in this inventory is ignored by ' keepInventory ' gamerule. OverpoweredInventory · Minecraft Mods · Storage - Minecraft Mods. Leather bags hold two slots, gold three, iron four and diamond five, with . What I' m thinking though is more inventory space in creative mode.