Sonic CD was December's top PSN game

Not that we're necessarily surprised by Sonic CD taking the number-one spot on December's PSN charts, but it's always a little sobering when the classics of yesteryear outsell brand-new titles like Trine 2. Nostalgia is a powerful thing, friends.

Well, the fact that Sonic CD is arguably the best 2D Sonic game of all time probably has something to do with it too, but we all know most of us bought it just to hear Sonic Boom again. Hop past the break for the full list of December's best-selling PSN titles.

1. Sonic CD
2. Infamous 2: Festival of Blood
3. NBA Jam: On Fire Edition
4. Payday: The Heist
5. Trine 2
6. Castle Crashers
7. Saints Row 2
8. Resident Evil 4
9. Mortal Kombat Arcade Kollection
10. Voltron: Defender of the Universe
11. Penny Arcade Adventures: OTRSPOD, Episodes 1 and 2
12. Scene It? Movie Night
13. Oddworld: Stranger's Wrath HD
14. Dungeon Defenders
15. Battlefield 1943
16. Midnight Club Los Angeles Complete Edition
17. Resident Evil 5 Gold Edition
18. Call of Duty 4: Modern Warfare
19. Real Steel
20. Limbo