Tapping into this spirit, they've released an update for PC Portal. Encrypted code has been found added to the game, pointing to a sequel?
Frankly it's all unclear and could just be Valve teasing us all. A new achievement has been added to the game involving radios that need to be placed in certain locations to receive a broadcast transmission.
The update says it has "changed radio transmission frequency to comply with federal and state spectrum management regulations", and is linked with Steam achievement 'Transmission Received'. Steam gamers are hard at work cracking codes.
So far, reports, they've managed to extract this:
Interior transmission active External data line active Message digest active System data dump active User back up active Password back up active
External data line active
Message digest active
System data dump active
User back up active
Password back up active
Also found was "The quick brown fox jumps over the lazy dog" found in checksum and morse code: "BEEP BEEEP BEEP BEEP" which translates to 'LOL'.
Yes Valve are enjoying themselves no doubt. A sequel to Portal was blurted out by Kim Swift not long after the first game launched, so we know it's coming. A new release is expected from Valve this year and Left 4 Dead 3 is off the table... for now.