Valve Time Actual Time Item

October 1997 September 1, 1998 Release of Half-Life demo

November 1997, April 1998, Summer 1998 November 19, 1998 Release of Half-Life

Four days Two months and six days Availability of the Earbuds in TF2

Every 3 months Every few years Half-Life 2 Episodes

Today Tonight at 11:49 PM, Pacific time Time TF2 beta went live

Q1 The third week of Q2

Beginning in (next month)... Beginning in the month after the stated one

Shortly In six months Left 4 Dead SDK

We're finishing this feature up now We've just finished the concept and we'll start working on it in the coming weeks (see below) Steam Friends

January or maybe even March May 23 Day of Defeat Source Steamworks beta

Until the problem is fixed with an SDK update For the engine after the engine after this (where everything but our tools have changed)

Monday Monday-ish Arena Mode announcement date on http://steamgames.com/tf2/heavy/ before going live late Monday night PST

When we started working on TF2 22 years ago (putting the date 11 years before the initial release of Team Fortress)

...any minute now 5 days later Nov 9, 2009 Left 4 Dead update

Late March Late April Release of The Passing for L4D2

In April May 12th Steam for Mac

July 12th July 15th TF2 Polycount Pack Contest winner selection

Later this Spring Fall Release of L4D on Mac

In one hour In two hours and 15 minutes The release of Alien Swarm

"Working with Developers" 8 years, 6 months 25 days Downloadable drivers via Steam

"Next update" (January 2011) Too many updates to count since then. Team Fortress 2 Jigglebone fix

Next week 1 week and 3 days Fix for the matchmaking menu on Team Fortress 2 not fully darkening the background

20 minutes 40 minutes The International Dota 2 Tournament

Early August September 14th Rubles in Steam Store

Limited Time Only Still going strong Mann Co. Store promotion item

Early October November 30th Counter-Strike: Global Offensive CBT

No later than June 30th. July 12th. 2012 International Ticket Information (Dota 2 Championships)

30 Minutes 1-2 Hours Playing a Mann vs Machine game

An update tomorrow or early next week 22/08/2012 (3 months later) Fix a critical security bug in the L4D2/ASW/P2/CS:GO engines.

September 5th 2012 [1] [2] October 3rd 2012 Expanding Steam to non-game software

April 23rd 2013 May 1st 2013 GCF to VPK conversion for Team Fortress 2

"Shortly after release" of OS X support (2010) June 26th 2013 Mac OS X support for Source SDK Code

Later this year (2011). Then delayed to Q1 of 2012. July 9th 2013 Dota 2

August 24th 2013 August 27th 2013 Team Fortress's Birthday

October 27th 2013/Middle of September December 4th Part two of the "bi monthly" comics

By the end of August (2014) 4th September, 2014 Goblin Techies for Dota2

July 31 at 8 am

July 31 at 12 pm July 31 at 12:45 Pre-order pickup at TI5

4:00 PM PDT 2 Hours later Dota 2 True Sight Episode 1

Later this month (May 2017) May 39th, 2017 (June 8th, 2017) Dota 2 Siltbreaker Campaign Act I