Newegg offers downloads of Doom 3 for Mac for $2.99. Coupon code "EMCPFHA69" cuts that to $2.39. That's the lowest total price we could find by $8. Deal ends May 5.

Of note, Amazon offers downloads of Call of Duty 4: Modern Warfare for Mac for $7.17. (Newegg charges pennies more via coupon code "EMCPFHA68".) That's the lowest total price we could find by $9, although we saw it for $2 less last month.