Mass Effect 2, Mirror's Edge highlight weekend Impulse sale

Impulse purchasing may be in the stars this weekend if you're a PC gamer without Mass Effect 2 yet -- seriously, what are you waiting for? This weekend, Impulse has the regular and "digital deluxe" edition of Commander Shepard's suicide mission for $30 and $40, respectively. That's $20 off the regular price.

Other deals include indie darling World of Goo and the experimental Mirror's Edge for $10. The full list of discounted games is after the break.

• Aveyond – The Lost Orb for $6.75 (25% off)

• Imperium Romanum Gold Edition for $9.99 (50% off)

• Mass Effect 2 for $29.95 ($20 OFF)

• Mass Effect 2 Digital Deluxe Edition for $39.95 ($20 OFF)

• Mirror's Edge for $9.99 (50% off)

• Port Royale 2 for $9.99 (50% off)

• World of Goo for $9.97 (50% off)

• World War 2 – Time of Wrath for $20.99 (30% off)