Kill, quest and fight for Blood, bank it as RP so it survives the wipe, and level your skill trees with XP.
Blood

Blood is an item in your inventory. You earn it from kills, events, quests, challenges and raid base loot, and you can trade it with players or sell for it in vending machines.
Blood is wiped with the map. Bank it before the wipe.
RP
RP (reward points) is your balance, and it stays across wipes. Events and votes pay RP directly.
/blood (or /bank) turns RP into Blood in steps of 10, 100, 1,000 or 10,000, and banks all the Blood you carry as RP in one click. RP buys vehicles and packs in the store, your own raid base with /buyraid, personal daylight with /day, a Town plot, donations to the community goal, skill tree resets and XP claims on daily quests. Voting is the fastest free RP. Bringing a friend pays too: on their first day they type /refer and your name, and when they have played 5 hours you get 2,500 RP (another 2,500 at 20 hours) and they get 1,000. You need 10 hours played yourself to be named.
XP
XP never wipes. Each of the six skill trees has its own XP, earned by doing that tree's thing:
| Tree | Earns XP from |
|---|---|
| Prospector | Ore nodes, stone and ore collectables |
| Homesteader | Trees, plants, planters, food collectables |
| Hunter | Animals, skinning, fishing |
| Explorer | Crates, barrels, digging, the metal detector |
| Soldier | NPCs and zombies, Zombie Hunt, heli, Bradley, convoy, raid bases |
| Engineer | Breaking into raid bases, siege weapons, hacking crates, monument fuses, buttons and keycards, research paper |