You can't escape the fact that NCsoft's MMO Aion is a popular title. Much like this week's list of Steam's top 10 best selling PC games list, the latest such list from IGN's Direct2Drive shows the game on top for the first two spots (Collector's at number 1 and Standard at number 2). The indie-made MMO Fallen Earth also continues to do well at number 3 on the list this week.

As one might expect, this week's list also has a number of games that Direct2Drive put on sale for just $5.

1. Aion Collector's Edition, - NCSoft
2. Aion Standard Edition - NCSoft
3. Fallen Earth - Fallen Earth, LLC
4. Neverwinter Nights 2 - Obsidian/Atari ($5 sale)
5. Assassin's Creed Director's Cut - Ubisoft ($5 sale)
6. Titan Quest Bundle - Iron Lore/THQ ($5 sale)
7. Neverwinter Nights 2: Storm of Zehir - Obsidian/Atari ($5 sale)
8. Champions Online - Cryptic/Atari
9. BioShock - 2K Boston/2K Games ($5 sale)
10. Star Wars: Knights of the Old Republic - BioWare/LucasArts