XP

Background
XP, also known as Experience or Pass XP, is what is used to level up in surviv.io. It was added in 0.8.6 "Give me a Quest" Update. There are multiple ways to gain XP.

Quests
Quests were the first way to gain XP and were added in the same update as XP. There are 2 categories of quests, normal and hard. Normal quests are worth 30XP while hard quests are worth 40XP. There are 19 normal quests and 6 hard quests.

XP Artifacts
XP Artifacts were the second way to gain XP. They were added in 0.8.7 "Trick or Treat" Update. Six of them would give you 8XP, 3 would give you 24XP, and the Cake Donut would give you 96XP. They were removed on November 1, 2019 when the Halloween Map was removed.

Social Media
Another way to gain XP was to follow surviv.io's Facebook, Twitter, Instagram, and YouTube accounts. The links are found in the Loadout section of the menu. Each one you followed would give you 15XP and following all 4 would total 60XP.