That's why you should save before the conversation, as it's possible to get a different result after re-loading. If she believes you, you'll receive 750xp, and if not, well, this quest will be effectively over. To quell her fears, defend the Overseer's actions by telling her he's only trying to protect the vault dwellers. She's worried that the Overseer is unecessarily keeping them inside the vault.

Save before you speak with her, because completing this 'quest' is partially dependent on your speech and intelligence skill. On level 2, in the second room on the north side, you'll find Theresa. The water chip quest is listed next to last because it's likely you'll complete the others before that. The remaining ways, and possibly other minor quests I will leave up to you. Here is a list of the significant quests in the interior of Vault 13, each with a brief synopsis containing at least one way to solve it. Living Quarters: 2nd level of the vault.Cave Entrance: where you begin the game.That will be either after you discover the water chip or as a side trip for experience after Shady Sands, Vault 15 and the Raiders. The next time you visit Vault 13, come back to this part of the walkthrough and continue. That's Shady Sands, a small town, and you should stop there before Vault 15. Even if you miss it, click on it again and you'll travel there. On your way, wait until you pass another highlighted green explorable area between Vault 13 and Vault 15 and click on it as you pass over it. You can click on any part of the map and travel to it. But you'll need to venture there eventually, and it's due east from Vault 13. Click on the Vault 15 button to begin overland travel to that area, since it may have the water chip you're looking for. There will be only two destinations at this point, Vault 15 and Vault 13. There are several of these, and your chance to hit one is dependent partly on your luck stat. Whenever it's the large target, it's a special, non-hostile encounter. Whenever you're stopped by a lightning bolt on the map, it's likely hostile encounter. Random encounters are mostly hostile, and include radscorpions (which you're not exactly prepared for quite yet), raiders (nor them), mole rats and many others. During your travels, you'll likely come across many random encounters. Each of the explorable locations will be surrounded by a light green circle. There are twelve explorable locations in Fallout, usually with several maps making up each of them. You'll be back to Vault 13 again, perhaps twice (or more) in the future, so when you've had enough rats, exit via the red grid in the southwest, and you'll find yourself on the World Map.

The green ones always lead to different maps within the same area. The red ones always lead to the World Map. You'll know you're at an exit when you find a micro-dotted grid, either red or green at the edge of a map. I'll be using north, east, south and west during this walkthrough and they correspond to Up for North, Right for East, Down for South, and Left for West. To find the cave exit, head straight south (down) from the initial corpse until the dead end, and then head west (left). Plus, to be allowed back in, you'd have to leave the area and wait a day anyway. There are some quests to be had back inside Vault 13 but to complete them all, some of your stats will likely need to be increased (namely speech), which is why I recommend you stop by at a later time. If possible, use this to your advantage here, and it can help you walk away with approximately half the experience needed for level two when you make it to the exit. Remember, if you have a fairly high agility, one of the best tactics to use versus melee enemies with only one attack is to first attack yourself and then use your remaining action points to run away from the creature. There are approximately 20 rats in this cave, so consider fighting them using your knife rather than wasting the ammo in your pistol, unless you're running low on hit points. Now that you've entered the world of Fallout, what is there to do? Start out by searching the nearby corpse for some advantageous early equipment, and equip it into your active slots.

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