You can try Ion Maiden's single-player in the Early Access version, both Queen of the Hill mode and a shareware-style chunk of its campaign. Alex Wiltshire thoroughly enjoyed it, saying, "Ion Maiden's scale is ridiculous, with everything too wide and too tall, but that's totally fine because of your equally ridiculous run speed and jump height. You don't need special abilities to traverse the world, not even a sprint meter, because you can just run everywhere. Ion Maiden has the old school's vital kineticism, a sense of speed that more earthbound modern shooters has forgotten. I'm not saying that making everything fast is ideal in all cases, but when environments are this enormous zooming through them feels great."