According to Astro Flags, Congo's flag flies over Saturn and Uranus

With sounding like the teenager I've possibly never been, the older I get, the less I'm interested in what you do in games, but the more interested in why I'm supposed to be doing it.

In this context, Astro Flags is my ideal game.

The gameplay is immensely simple - there are seven mini-games such as memory matches and match-threes, which are based around country flags.

Each mini-game is placed on one of the planets in our solar system: Mercury to Neptune (Earth doesn't have a mini-game). Hence, in the main menu view, the flag of the player who has the highest score - via OpenFeint - on that mini-games flies proud over the planet.

As you can compare your score on each game to each high score, this provides neat encouragement to play certain games more, especially if you're very nationalistic, or indeed anti-nationalistic to the country that currently owns that particular planet.

For the record, at time of writing, China controls Mercury and Venus, USA Mars, Australia Jupiter and Neptune, while - surprisingly perhaps - the Congo has Uranus and Saturn.

Developer IM Games also says it will award prizes for each of the individuals controlling a planet on mid-day March 5, EST.

Astro Flags is now available for iPhone and iPod touch, priced 99c, €0.79 or 59p.