For many years now, fans of the popular Valve game "Half-Life" have been waiting eagerly for another installment in the series. There have been some petitions before and a meme called "Half-Life 3 confirmed" but sadly, Valve didn't budge on the fans' gesture on bringing the much awaited third game to life. Now, however, a potential clue has been spotted in the updated files from the popular Massively Online Battle Arena (MOBA) game "Dota 2" and the text based file is called hl3.txt.

According to the report from PC Gamer, the file hl3.txt on "Dota 2" was first spotted by Twitter user Steam Database and the complete command line for the file was posted on Github.

However, there are also other files that were a bit suspicious, to say the least. In addition, PC Gamer has also reported that there are also the text based file named rpg.txt and ai_basenpc.txt.

After close inspection, PC Gamer notes that, these files also refer to other aspects like NPC and squad behaviors, ziplines, vehicles and the oddest one of them all, quests. Fans can view the sample line below provided by PC Gamer:

string m_HelpText = "NPCs that are in the same squad (i.e. have matching squad names) will share information about enemies, and will take turns attacking and covering each other."

Of course, this doesn't prove that Valve has confirmed "Half-Life 3" or if they will ever make it in the future. Fans on the Twitter thread have expressed their skeptical side on this matter and some even helped provide a few insights as to what these files are.

Many eager fans have been probably wondering why has Valve included these files on "Dota 2" and how is this relevant to the MOBA game and, probably, the most important question to ask now is, "does this confirm Half-Life 3?"

Fans can only speculate for now though until Valve releases a statement if this is in fact related to "Half-Life 3" or not.