A promising new mod for Dota 2 let's you play Counter Strike from a bird's eye view. Polystrike, by Mark Mocherad, is still in early development. To play it, you can subscribe to Mocherad's Patreon to get access now. Or you can wait until later this year when, according to Mocherad, it will be released for free. Mocherad is offering some interesting perks to his Patreon followers so you may find it worthwhile to subscribe.
