How to upgrade the steam level
Each purchase of a game can increase 1 experience value, and each badge obtained will increase 100 experience value.
Levels 1 to 10 require 100 experience per level, levels 10 to 20 require 200 experience points per level, and so on.
You can go to the Steam level calculator to calculate the experience and the number of cards you need to reach the level you want.
You can go to mmoso.com, enter...