Browser Tick Based MMO Minigames

The game is a scifi style space strategy game where users develop there planets, research and develop new ships and wage war on other players. I'm looking for someone to develop a series of single player missions for a space MMO. There should be 4 different type of minigames and they should be designed to fit in seamlessly with existing content. The minigames should be functional to single player and not require other player interaction. The actual type of minigames and style implemented will need to be discussed after submitting the proposal. Please include a detailed proposal for 4 minigames that you would implement. Please be aware game code is php/mysql based and success in minigames should result in a bonus to the players main account.. Bids with generic proposals will be ignored.