Ring of Gyges Ver.0.0.4 by 4skin Games - Adult Sex Game

It's the year 20XX. A young scientist, who up until now hadn't achieved any significant breakthroughs, suddenly makes a groundbreaking discovery and invents a time machine. Or... something along those lines. With its help, he ends up in a world set in medieval times, and although his initial intention was to explore his invention, he eventually uses the technological advantage to create his own little playground.