Plasmatica Open, by Derek Vogelpohl, is a free futuristic outline display font with a rounded, retro-tech pulse. Its letters stack a thick outer edge around an open inner path, creating a tube-like, molded look that feels part arcade, part concept-car badge from the early 2000s.
That makes this free font a natural pick for posters, album sleeves, game title cards, club flyers, and tech event branding where the lettering can carry the mood on its own. It also works nicely for short headlines or logo-style wordmarks, because the repeated double-line forms give even simple words a built-in sense of motion and depth.