If you've got an internet connection, thousands upon thousands of free games are just one click away. The problem is picking the right site, with many so-called free services providing a route for hackers, phishers and spyware developers to access your PC.
So to help you play, and play safe, we compiled this sampler of our favourite free game sites, offering everything from single-player arcade classics to a surprisingly sophisticated multiplayer Pictionary clone. We even found freebie versions of big-download titles originally created for PCs and/or consoles.
Many sites are supported by adverts and you may also have to install an Active X control, Java, or Adobe's Flash player. But you'll never have to type in a credit card number - and you may just find a new way to enjoy your PC.
We've numbered the sites to help you keep count, rather than in order of preference. And if you want to want to keep on playing when you're away from an internet connection - on a laptop while on the move, for example - we've also put together a list of the free games downloads.
So, the weekend is here - it's time to play!
The big portals
These are perhaps the four major game portals. Although AOL Games now incorporates Pogo.com, it still exists as a separate site, so we count it here as one of our top 15.
1. AOL Games
2. MSN Games
4. Yahoo Games
If you've ever taken even a remote interest in playing games online, you've probably already stumbled on to one of the big portal game sites. But if you haven't checked out AOL Games (aka Pogo.com), MSN Games, or Yahoo Games recently, you might want to pay a visit to see just how large and impressive these mega-collections have become.
As ever, you'll find the best free board and card games here - MSN even offers duplicate scoring with its bridge game, although Pogo's interface is more user-friendly - but these offerings have been fleshed out with literally dozens of Flash and Active X games, many of which are web-based versions of arcade-style titles you may have run into on a console or even a handheld device (think Bejeweled or Alchemy).
Yahoo has a particularly appealing collection of Flash-based casual games: I'm currently hooked on Armor Games' Trapped! - a point-and-click puzzle adventure in which you wake up with amnesia in a locked bathroom and must use your wits not only to escape, but to figure out what's going on.
A secondary addiction is 2D Play's Perfect Pizza, in which you try to place various toppings on your pizza exactly the way they are positioned on a model pizza.
What I especially like about Yahoo's games is that Yahoo accompanies them with a link to the game's publisher, so if you like a game on Yahoo, you can visit the publisher's site to look at its other games. Because of Trapped! I checked out Armor Games and found a slew of interesting Flash games. In fact, PCWorld.com games blogger Matt Peckham recently wrote about one of the games I found on Armor's site, called Portal: The Flash Version.