Update: 20,000 gamerscore challenge

I feel a little ashamed at my dismal achievement-hunting efforts this past month. It all started off well as I polished off the final few challenges in Assassin's Creed II to reach 1,000G but it's been downhill ever since.

A brief dalliance with Gears of War 2 and Command and Conquer: Red Alert 3 - both of which added barely anything to my score - was followed by a few enjoyable romps with Left 4 Dead 2, a fantastic game but a little stingy pointswise. NHL 2k7 also failed to reward me with anything, although a few more hours and yet another winning season and I should be eligible for a big points payoff. Check out next month's update...

It wasn't until I started playing Batman: Arkham Asylum just over a week ago that I redeemed myself a little. Having completed the main story the other night, I'd racked up a respectable 500+ points. Thought it was a thoroughly enjoyable game but I've spent many an evening in search of hidden riddles - time I could have perhaps spent more fruitfully gaining points with another game.

Sadly - with just over a month remaining for my challenge, my 20,000G target is looking little more than a dream. I have only recently surpassed the 16,000G mark so time is not on my side... Watch this space.

Anyone out there got any suggestions for enjoyable games that offer decent points - not the likes of Avatar though please... am not that desperate, yet...