StoneAge World, one of the top mobile gaming titles in South Korea, just brought some modern machines into the prehistoric past. Netmarble announced the first content update for the pet-collecting mobile MMORPG with "Machine Invasion", the first invasion of the fantasy-adventure land of Tectonika by Machine Pets. Now, weekly battles against Machine Pets, along with other in-game improvements, are available for players to conquer. But that's all the new hotness; where on Earth did this game come from in the first place? Well, way back in the prehistoric days of the Internet (circa 1999), a super-…