Once they're level 50 and equipped with a good legendary weapon (20+ damage) they have a decent chance of surviving 100 hours in the wasteland without dying. You then need to equip them with the outfit that gives them highest endurance bonus (ideally +7, but +5 is probably the best you'll be able to manage), and then start levelling them in the wasteland. To get explorers with the most possible HP you need to raise their endurance to 10 while they're still level 1. High hit points (HP), a high damage weapon and 25 stimpacks. To maximize the time an explorer can survive in the wilderness without dying, you need three things. Since having higher stats means that the explorer will find more items, its actually the explorers with the lowest stats that can stay out the longest. Maximum Time ExploringĪn explorer will collect 100 items after 3 to 4 days of exploring, so the current maximum time is about 100 hours.

With the latest patch explorers automatically stop exploring and start heading home once they reach 100 items, so it's no longer possible to have an explorer out this long. However explorers can only carry 100 items, and they'll reach this limit long before that. I had an explorer out over 200 hours (more than 8 days) this way. In theory you can just keep reviving any explorer that dies in the wasteland to keep them out exploring indefinitely. (Note that this post was written early in the life of the game is likely out of date.)

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