harapeko yousai wa isekai de dai senkan ga tsukuritai: world of sandbox
Harapeko Yousai wa Isekai de Dai Senkan ga Tsukuritai: World of Sandbox (lit. The Hungry Fortress Wants to Build a Battleship in Another World: World of Sandbox) is a sci-fi fantasy isekai light novel series by Tentenko and illustrated by Haga Yui.
The series follows Eve, a male Japanese gamer hooked on a MMO space civilization builder, who awakes find that they're now inside their command fortress from the game and that they've become their female avatar. Finding herself accompanied by her AI assistant from the game, Ringo, they learn they've been stranded in the middle of the ocean with limited resources and so begin rebuilding so they can secure resources to one day again reach for the stars. Unfortunately things aren't going to be easy when they learn that the creatures and beings of this this world can possess powers that completely defy scientific theory. Thus begins the battle between sci-fi and fantasy.