Amazon has Enemy Within on sale for only $6. The expansion is a good grab for all XCOM Enemy Unknown fans - particularly since this is 20% cheaper than the current Steam sale that's going on this weekend.

The XCOM Series takes a 75-80% discount this weekend at GamersGate. XCOM: Enemy Within drops to only $7.50 this way, a rare break under $10.

XCOM: Enemy Within expansion to Enemy Unknown hits a new low today at NewEgg. After coupon the price drops to $4.99. Previous low was $5.99 back in early December. Normally sells for $20.

XCOM: Enemy Unknown's expansion Enemy Within dropped down to $5 after NewEgg coupon code. Activates on Steam, though if you try to buy on Steam you'll pay $30.

The November 2013 released expansion to XCOM: Enemy Unkown, has dropped to $12 today in GMG's Xcom franchise sale. Twelve bucks is the cheapest we've seen since January of this year during the waning days of the PC Gaming Winter sales.

Fan of turn based strategy/combat games and haven't picked up the 2014 relapsed XCOM Enemy Unknown? It was a fun title to play, and the complete edition is down to $8.50 at GMG today beating out the $10 it was during the Steam Summer Sale in GMG's Summer Sale. This is a flash deal, so the savings only runs for the next few hours and if you pick it up in that time you'll also get a free game (probably a random indie title, but still a nice bonus).

Best price in over a month on XCOM: Enemy Unknown The Complete Edition at GamersGate. Discount valid now through the weekend. A whopping $42.49 cheaper than the usual $50 list price.

XCOM: Enemy Unknown The Complete Edition gets an 80% discount to $10 at DLGamer today. The Enemy Unknown base game alone is a $30 purchase on Steam, and here you get that plus all the DLC/expansion content.

XCOM: Enemy Unknown The Complete Edition slashed 84% after coupon at GMG. Solid $42 cheaper than the $50 it's selling for on Steam right now.

XCOM: Enemy Unknown The Complete Edition slashed to $5.15 after coupon at FunStock Digital. New low by $2.

Groupon's getting into the PC download business but still keeping it as a physical item? XCOM: Enemy Unknown is at its all time low price point. Rather than emailing out the game code, they're sending it via snail mail (shipping is free). Awesome price if you can handle the wait.

New low on XCOM: Enemy Unknown this week in GameFly's 2K Games Sale. Previous low was $7.50 on January 3rd of this year during the final stages of the PC Gaming Winter sales (about $1.50 more).

XCOM: Enemy Unknown is only eight bucks after instant savings and coupon combination at GMG. Ties the all time low seen last month. Sells for $40 on Steam.

XCOM: Enemy Unknown down to $8 after coupon at Green Man Gaming. Lowest price ever by $2. Normally sells for $40 on Steam.

Xcom Collection only $14.40 after coupon at Green Man Gaming. Includes XCOM: Enemy Unknown, its 2 DLCs, and five other classic XCOM titles including the original 1994 X-COM: UFO Defense.