I found a multi-tool with 24 slots, and they are in a nice 3x8 formation That's the cap, 24 for multi-tools and 48 for suit/ship. For No Man's Sky on the PlayStation 4, a GameFAQs message board topic titled " What's the maximum amount of slots you can have on. The exosuit has a maximum of 48 inventory slots. Each slot can hold 1 to items of a particular stackable material. Not all materials are.