(Image credit: Burgee Media) Last year, solo developer Brian—operating as developer Burgee Media—released Erenshor in early access on Steam to offer the MMO experience he was denied in his EverQuest years by a shoddy internet connection that made group play impossible. It's a fully simulated, singleplayer MMORPG , with dozens of quests, zones, and computer-controlled "simplayers" who'll group up, join guilds, and hunt their own loot. It's been a successful experiment: At time of writing, Erenshor boasts an impressive 94% positive review rating. And later this year, it'll be adding new endgame challenges for both its real and simulated players: Erenshor's getting raids. In an update coming this summer, max-level players will be able to find runes allowing access to four raids, each consisting of an otherworldly plane aligned with one of Erenshor's gods.…