Play with other people
In m3o you play on a shared mine field and when playing you can select from different flags to place on the game field.
Nearly infinite game field
If every cell on the game field was as small as a speck of dust it would take 17 billion years at the speed of light to travel the width of the board.
Scores and leaderboard
If you want to compete m3o keeps track of your score and lets you compete for a position on the daily and hourly leaderboards.