DIO is the in game currency for Decimated. It is used to purchase in-game items such as vehicles, weapons, character customizations and consumables such as food, water, ammo and fuel. DIO will also be rewarded for completing missions in Decimated, enabling play-to-earn mechanics.
It is possible to buy DIO prior to the official launch of the game.
Here is where DIO can be purchased:
The direct link to buy DIO with USDT is: https://bit.ly/DIO_Raydium2
Simply connect your Solana wallet (Phantom, Solflare, Sollet, etc), make sure you have USDT to buy DIO and SOL to pay for the transaction fee. Here is a simply tutorial: