At GamersGate, buy three game downloads for Mac, get the fourth game for free during its Holiday Sale. (The lowest priced game will be discounted in cart.) With prices starting as low as 99 cents, that puts most titles at or near the lowest price we've seen. Note that some games requires a Steam account to activate and play. Notable downloads:

• Fortix for Mac for 99 cents
• Toki Tori for Mac for $4.99
• Braid for Mac for $9.95
• Penumbra Black Plague for Mac for $9.95
• Command & Conquer Red Alert 3 for Mac (pictured) for $19.95
• browse all Mac games at GamersGate