Four new Deathmatch maps, controller support, Steam Networking support and even the original intro video are also available.
Level designer Dario Casali has revealed a few of the names that the game went through during development before settling on Half-Life.
UPDATE: The companion app has now been removed from the Google Play Store, on account of being outdated.
Going bigger might not necessarily be better for these franchises.
From skipping to the very end to hidden messages and teases for upcoming games, these secrets took a while for many to discover.
A game doesn't have to be out-and-out horror to scare the crap out of you.
From untold horrors lurking in the cosmos to an utter sense of insignificance in the greater scheme, Valve's shooter franchise nails these aspects flawlessly.
Not all characters can be bosses- but these definitely should have been.
Not all final bosses are what they're cracked up to be.
I wouldn't count on any of these ever happening, but it's a nice list.
When you least expected it, these 90s games terrified you the most.
Even the most eagle-eyed players can walk right into these.
Valve sets up some exciting things for the future with the newest game in the series.