Compare Amazon PC Game Deals

Steam offers online play of Sid Meier's Civilization V for Windows or Mac for free. It's the first time we've seen this game available with free play for everyone. The free play of this full-version game ends May 27 at 4 pm ET.

Alternatively, purchase the game for $7.49, or get the Game of the Year version for $12.49. (Gamefly and Get Games have the Windows-only version for the same price; Amazon charges the same for the Windows-only GOTY.) They're each price lows by at least $12.

Downloadable Content (DLC) is also available starting at 74 cents each, or $2.49 for the DLC pack. These sale prices end May 28.

Amazon offers downloads of Dead Island for Windows for $11.99. That's tied with yesterday's mention and the lowest total price we could find now by $18.

Amazon offers downloads of Metro 2033 for Windows for $4.99. That's tied with last month's mention and $5 under the lowest price we could find for the game in any form, physical or digital.

Amazon offers downloads of Bioshock for Windows with Bioshock 2 for Windows for $7.49. That's the best deal we've seen for these games and a current price low by $33.

Amazon cuts up to 92% off a selection of video game downloads for Windows and Mac, dropping them to as little as $1.24, during its Game Downloads Mayhem Event. That puts most games at or near the lowest-we've-seen prices, some by significant margins. Deal ends May 29. Some best bets:

• The Stronghold Collection for PC (pictured) for $4.99
• Borderlands: Game of the Year for PC for $7.49
• Square Enix Ultimate Collection for PC for $7.49
• Rollercoaster Tycoon 2: Triple Thrill Pack for PC for $9.99
• browse all discounted PC and Mac games at Amazon

Amazon offers downloads of Rollercoaster Tycoon 3: Platinum for Windows for $4.99. That's $18 under the lowest price we could find for a physical copy of this game. (We did see it bundled with a $5 Amazon credit for just a buck more in December, since expired.)

Below we've listed several deals on games for Windows. Each is at lowest-we-could-find prices. The games:

• Psychonauts (pictured) for $1.99
• Costume Quest for $2.99
• Stacking for $7.49
• Oh So Fine Bundle (all of the above games) for $9.99

Amazon offers preorders of Borderlands for Windows for $49.99 with free shipping. That's the lowest total price we could find by $13. It's scheduled for release on or around September 18.