The PC digital sales reign of Aion has drawn to a close. The top spot on Steam last week was claimed by the newly-opened Left 4 Dead 2 pre-orders--no surprise considering its pre-order numbers are running at 300% of the original's--while Direct2Drive saw the coronation of Gothic developer Piranha Bytes' new RPG Risen.

Post-apocalyptic MMO Fallen Earth has already dropped from Steam's charts, though it's holding steady at D2D--resisting the advances of the ongoing fifth anniversary $5 sale.

Of course, it's important to note Aion has standard and collector's editions high in both charts, though it's impossible to judge whether combined they would claim the top spot.

Steam Top Ten (9/27 - 10/3) by revenue

1. Left 4 Dead 2 (pre-order) / Valve
2. Left 4 Dead / Valve
3. Aion Collector's Edition / NCSoft
4. Risen / Piranha Bytes
5. Aion Standard Edition / NCSoft
6. Batman: Arkham Asylum / Rocksteady Studios
7. Counter-Strike: Source / Valve
8. Borderlands (pre-order)
9. Resident Evil 5 / Capcom
10. F.E.A.R.2: Project Origin / Monolith

Direct2Drive (9/27 - 10/3)

1. Risen / Piranha Bytes
2. Fallen Earth / Fallen Earth, LLC
3. Aion / NCSoft
4. Mount and Blade (D2D Turns 5) / TaleWorlds
5. Aion Collector's Edition / NCSoft
6. World of Goo (D2D Turns 5) / 2D Boy
7. Champions Online / Cryptic Studios
8. BioShock (D2D Turns 5) / 2K Boston/2K Australia
9. Defense Grid: The Awakening (D2D Turns 5) / Hidden Path
10. Civilization 4 (D2D Turns 5) / Firaxis