Again I show my ignorance of computer games by admitting that I had to ask someone if Half-Life 2 could be played in a networked mode or not. The answer was a little complicated, as I learnt that the original release of HL2 could not be played in multiplayer mode, but instead was packaged with a different multiplayer game called Counter-Strike: Source. Eventually though, the game publishers released Half-Life 2: Deathmatch as a free download for HL2 owners.

So, according to the best information I have, there's nothing at all wrong with the Martians' conclusions in this comic.