While this may be a stretch, I decided to make a timeline to describe what I mean. I feel many people completely miss the point of this Thread.In that case, READ THE GODDAMN ARTICLE OR BE TERMINATED YOU FOOL. TIMELINE in which games are in order (And other important elements). -Ancient Past: Dota 2 takes place, has nothing to so with the storyline but I decided that this would be a good place. -1800's to 1880: Mann Co buys worthless plots of desert around New Mexico which contains large amounts of gravel. As a result, the 2 people (Blu and Red) who thought of this wage a war against each other, by recruiting soldiers / mercenaries for each team. 9 members hired by BLU are the only evidence of this 1st Gravel Wars. -1930's - 40: Team Fortress Classic: The 2nd Gravel wars take place, with BLU winning. The remaining RED fighters were killed or either fled into hiding. The weapons in this war are high tech because of Australia's scientific intellect, which kept it hidden from most of the world, and out of many of the future wars the world would face. -1940 - 45: WW2 starts, Soldier "fights" in the war as a unregistered soldier, Day of Defeat takes place. Heavy's family is placed into a gulag by the NKVD. -1960 - 1970: TF2 takes place, the 3rd Gravel wars take place. Several bases are established on Earth and Space. The RED team and BLU team and many other Mercenaries in their place are Hired by the Administrator, Helen. The Mercs in the comics are 9 mercenaries that were first hired. -1970: Mann vs Machine Begins, Remaining BLU mercs are recruited into RED, and many are killed in a effort to stop the robots. Eventually, Gray is killed and they stop a world domination scheme in the process. The remaining robots are destroyed or take up new lives (somehow). -1980's - 1990: Mann Co becomes bankrupt. RED and BLU turn into Black Mesa and Aperture Science. *BLU mercenaries under RED leave and reform BLU, who are led under a "Soldier" classed mercenary named Cave Johnson. Cave exaggerates Aperture's position as a original shower curtain salesman, and RED is led by the original RED engie, Dell. Dell goes on to find more Australium to help humanity. They create a portal machine that creates entrances to a border world named Xen, which has large numbers of Crystalized Australium. Aperture does the same by making a ship with the same feature named the Borealis, but it disappears. -1990 - 2000: Counter Strike takes place: Terrorist insurgents spring up all over the world due to the rarity of Austrailium. As a result, nobody payed Attention to the Black Mesa Incident. 1999 - 2003: Half Life 1 / Black Mesa takes place. VOX is used as the PA system. Resonance Cascade occurs, starting the downfall of humanity. Gordon Freeman successfully destroys the Nihilanth.The Seven Hour War takes place, Effectively killing most of Humanity. Portal 1 also takes place in this time period. Opposing Force and Blue Shift also take place. Adrian Shepard is put in stasis for a unknown period by the G-Man. During the Black Mesa Incident: A flu infects a majority of the population and L4D takes place (Correct me If I am wrong). 2020 - 2028: Half Life 2, Ep 1 , and Ep 2 take place. In Hl2, Gordon Freeman kills Dr Breen. Under Eli Vances dying words, Freeman is told to destroy the Borealis. At this time, all access to Combine Portals are destroyed. 2028 - 2040: Half Life 3??? 2052: Humans are able to start up their first space colony via Combine technology / abandoned space facilities left by Mann Co. Alien Swarm takes place. 2040 - 20,000 years later: Portal 2 takes Place. Chell steps out of Aperture Science for the first time, and stumbles upon a wheat field. Presumably the Combine have left earth / is extinct. -Future: Ricochet takes place, in the far future with humans or Vortigaunts or something. Wheatley is STILL IN SPACE. Correct me if I missed anything.