If you’ve missed out on the seminal Half Life FPS series (or you just happen to be a dirty pirate), Valve has discounted the whole lot to fire sale prices. This weekend, you’ll be able to download Half-Life, Half-life 2, both episodes, and Half-Life: Deathmatch from Steam for 66% off regular price. For Steam neophytes, that means about $1-6 for each of the games. If you’d like to just up and download the lot of them, it comes out to about $17 (which is probably cheaper than Episode 3 will be whenever it arrives).

The Half-Life series is famous for popularizing scripted events as a way to integrate narrative into gameplay without using cut scenes. Subsequent games made great strides in physics-driven gameplay and facial animations that made characters warmer and more believable. So even if you aren’t a huge FPS fan, you can still have a piece of gaming history for less than the price of a budget game.

Valve’s entire collection is also 10% off, which adds Portal, Team Fortress 2, and Left 4 Dead (among other notables) to the deal for a grand total of $90. Whether you’re in for a penny or pound, there’s a lot of gaming for just a little money over at Steam this weekend.

This week has been a bit on the bloggy side here at Pixelsocks.com, so we thought we’d finish it off strong with a few PSAs.

If you’ve somehow missed out on the original Half-Life, valve is selling it for $0.99 right now. The seminal FPS was essentially the herald of modern FPS design, so in addition to being dirt cheap, the gameplay hasn’t aged overmuch. Give it an hour or two and find out just how much more of your free time that dollar will cost you. Get on it, though, the sale burns out at 12:00 PST today.

Speaking of seminal games, go check out Good Old Games. They digitally distribute DRM-free copies of older games for $5-$10 that have been rehabilitated to run on Vista and XP. It’s a good resource for catching up on gaming you missed the first time around.

Speaking of which, I need to go get a copy of Fallout. Please excuse me.