Avalanche of Deals Hit Steam; Daily Promotions and Publisher Bundles Included

If holiday sales were rated by impact, Steam just delivered the equivalent of two, knockout-caliber black eyes. Hundreds of games are on sale right now from the popular digital distribution platform, beginning today and running until January 2.

While ongoing sales will pepper the general sale items throughout the period, a number of daily deals are available to help users pad their digital gaming library or give the gift of completely green video game giving. Steam is also offering a new "Holiday Bonus" deal per day, which will further discount a select title if users meet a specific criteria.

Today's bonus offer is an additional 10% off Portal (it's already discounted by 75% as part of today's daily deals) for users who already own Half-Life 2 on their Steam account. That's 85% off! Too bad 97.3% of you already own it.

The daily deals for the first day of Steam's Holiday Sale are:

Those who prefer to buy in bulk can grab publisher library bundle packs, including sets from 2K Games, THQ, Epic Games, Bethesda Softworks, Rockstar Games, Valve Software, and Square Enix/Eidos.