In Robinson Crusoe, the players are a collection of castaways on some remote island. There are 6 different scenarios, so the goals and perils of the game will change a bit.
During the game, you can "invent" items around camp, and various events can destroy those items. The trouble is that some items give one-shot benefits, while others give continual bonuses. For instance, the Shovel invention's benefit is "you have a shovel," which is useful because inventing the Cellar requires a shovel. On the other hand, the Spear (the Soldier's item) has a one-shot effect: +3 weapons.
What happens when an event destroys an item with a one-shot benefit? For instance, you build a Spear, get +3 weapons, use some of those weapons, and then you lose your Spear in an event when you only have 1 weapon in camp? Can you rebuild the spear again for another +3 weapons? Do you have to lose any of your existing weapons when you lose the Spear?