A publisher with it's own distribution might get $35. Everybody else gets less. Independent studios typically get nothing beyond the considerable development costs, unless they've got a major hit on their hands and they own the IP. Don't underestmate marketing, distribution, and publishing costs -- plenty of finished games never see store shelves because they are judged unlikely to recover those costs. Likewise, as game development budgets increase, it becomes necessary to spend more on marketing to ensure that investment in development pays off. A $40Mgame might have a $20-30M marketing budget.