True Games Interactive has announced the start of the closed beta test for Mytheon, a new MMO developed by Petroglyph, the team best known for Star Wars: Empire At War and Universe at War RTS games. Mytheon is Petroglyph's first online micro-transaction game that combines the best elements of action, strategy and RPG game-play with a heavy emphasis on collectability and combat. The title is set within a fantasy universe infused with unique mythologies from across the globe. Players will first embark on a journey through the extensive lore of ancient Greece, with ongoing expansions to follow. Mytheon is scheduled for 2010.