Currency

Unfortunately the apocalypse was not enough to deliver us from this evil, and money still make the world go round. A new currency was introduced by Monocorp: the monokredit, called 'credit' or 'K' for short.

You can earn credits by doing missions for NPCs, fighting and betting in the raider arena or LV boxing matches or simply selling the items you scavenge. Use the money to buy items from traders, recruit followers, upgrade your vehicle in mechanic shops or invest them in a bussiness.
 * To put it bluntly, I find the idea of 'money' in an apocalypse setting like Dystopia: The Incident rather amusing. No paper money would be good for anything else than starting a fire. I searched for a believable replacement, and the prepper literature offers a number of answers, from which I randomly quote gold, recreational drugs and ammo. I find gold to be a bit anachronistic and inadequate in this survival setting. Alcohol or weed seem a little far-fetched too. Ammo would probably be the best solution, concerning both realism and immersion. However, due to some developing reasons that I won't detail here, would be cumbersome to introduce, so I resorted to the good ol' dollar. This changed for Dystopia: Scum City, since now there is an overhead authority that can issue and back up a local formal currency.