Box art for Elder Scrolls ArenaImage: Bethesda Back in February, Bethesda confirmed that it was shutting down its proprietary PC game launcher and would move affected games back to Steam. Now, as we get closer to the May 11 shutdown, Bethesda has started adding some of its classic games to Steam. Some are arriving on Valve’s digital storefront for the first time, and three for the low, low cost of nothing at all. Today, Bethesda added five classic titles to Steam, mainly from the Elder Scrolls franchise, including two of its lesser-known and more obscure spin-offs, Redguard and Battlespire. Here’s the full list. The Elder Scrolls Arena The Elder Scrolls…