CSGO Upgrader is a game on CSGO gambling sites that allows you to upgrade your skins for more expensive ones. On CSGO Upgrader, you can deposit skins that you can later use in the upgrader. It's simple - after you log in, select skins you'd like to upgrade and skins you'd like to win. Your winning chance is dependent on your skins' value and the value of skins you've selected from bot inventory. Once you've selected both your skins and skins you want to win, you can click "upgrade". You will see an upgrader animation that will tell you whether you won or not.
You should check the site before playing on it. There are a few things to consider when looking at the CSGO Upgrader Site:
Many CSGO Upgrader Sites offer various bonuses to attract new users. Some of them might be free coins, others might be deposit bonuses. You might need to use a referral code to get these bonuses.