You can grab The Rig: A Starmap to Murder for free on Steam. It's a single-player point-and-click style adventure game for VR, without the point-and-click! Inspired by classic 1990s adventure games, you'll explore a dilapidated travel agency, an old starship, and a massive asteroid mine at the edge of deep space. The story is tight and focused, lasting about as long as a feature film. Don't miss this freebie!
