The PlayStation Network has come a very long way in the last five years.

Believe it or not, there was a time when merely a handful of games were available on the PlayStation Store, and only a fraction of those were actually worth playing.

However, nowadays, Sony’s online service is full to bursting with quality titles that have no doubt had your virtual wallet begging for mercy on more than one occasion.

Gone are the days when downloadable games were merely ten-minute curiosities to play in between sessions on ‘bigger’ games. In fact, many PSN titles offer experiences just as engaging and immersive as any full retail game, and sometimes even more so.

Therefore, the PS3 Attitude team thought it was about time we revealed our favourite PSN games, and rewarded them with a spot on our top 20 countdown. Our chosen titles cover a wide range of genres, and we feel represent the very best of the PlayStation Network.

For the next twenty days, we’ll be revealing one of our favourite PSN games every day at 12pm (BST), so be sure to check the site regularly to discover which titles have made it onto the final list. We’ll also be updating this very post with links to all twenty articles once they go live, to make it easier to keep track of the countdown.

Welcome to PS3 Attitude’s 20 Days of PSN! Can you guess which game will take the top spot?

• 20. Siren: Blood Curse
• 19. Castle Crashers
• 18. Scott Pilgrim vs. the World: The Game
• 17. Shatter
• 16. Monkey Island 2: LeChuck’s Revenge
• 15. Warhawk
• 14. Marvel Pinball
• 13. Dead Nation
• 12. Fat Princess
• 11. PixelJunk Monsters
• 10. Limbo
• 9. Super Stardust HD
• 8. Beyond Good & Evil HD
• 7. Braid
• 6. Lara Croft and the Guardian of Light
• 5. Joe Danger
• 4. Ratchet & Clank: Quest for Booty
• 3. WipEout HD
• 2. PixelJunk Shooter
• 1. Flower

And that’s all, folks. Thanks for joining PS3 Attitude during our 20 Days of PSN – we hope you enjoyed it, and agreed with our choices!