Image: Valve Artifact has now failed twice. After a messy launch and a failed attempt to reboot it last year, Valve announced today it’s calling it quits on the beleaguered Dota 2 card game. “It’s now been about a year and a half since the current Artifact team began work on a reboot in earnest,” the game’s development team wrote in a new blog post. “While we’re reasonably satisfied we accomplished most of our game-side goals, we haven’t managed to get the active player numbers to a level that justifies further development at this time. As such, we’ve made the tough decision to stop development on the