This is the second part of "Hey, look at my wealth" article from AlterGamer's series "Gamers, get your suits on". The series is a universal guide for all games (from Civilization V to Skyrim, from economy to FPS games), that is based on common sense and management knowledge. This part covers the subject of reserves in your game's economy. How much you should store to be safe? Why do we fight over mammoths? How to survive a war? You will find answers to these questions in the article.