Open that Portal

Kai accidentally opened a portal. On the other side he found a dying world, forgotten towns, dangerous beasts, and people struggling to survive. Kai soon discovers something impossible: He can open portals. But power alone won’t save a civilization. Armed with modern knowledge and the ability to travel between worlds, Kai begins doing what he does best, building. Workshops become factories. Villages become cities. Gateways become trade routes between worlds. But every portal he opens leads somewhere new… and not every world welcomes visitors. To survive, Kai must do more than explore. He must build a civilization that spans dimensions