The cryptocurrency market has surged in December, driven by significant gains in XRP, Ethereum, and the GameFi project Rollblock, which has raised over $7 million in its presale. XRP's price has increased by 350% amid optimism surrounding its legal issues, while Ethereum has gained 27.9%, reaffirming its status as a leading blockchain platform. Rollblock aims to revolutionize online gaming with its innovative offerings, positioning itself for substantial growth in the evolving digital asset landscape.