The Game of Tomorrow. Reborn as Twins, #2

The tutorial is only a game. The power it gives them isn't. Emma and Kayla Channing have already lived through the impossible. Born as identical twins after a reincarnation glitch, linked by a bond neither science nor magic can fully explain, they grew up knowing that humanity's future would eventually change forever. Now the Game has arrived. Players across Earth enter a vast shared version of humanity's future, where fortified cities stand against mutated beasts, alien ruins hide beneath familiar streets, and dungeons and spatial rifts lead to worlds no human has ever seen.