When I played half life 2 for the first time, there was a lighting issue. I easily fixed it by a few dxlevel commands, so before I even ran episode 1 and 2 I added the same commands through steam to execute it on start. So now I tried re-installing episode 2 and I did not input any commands and it immediately give me the achievemnt. This worked
METHOD 3: Verify integrity of game cache. This is what worked for me. Exit the game and open its properties, then click ' Verify integrity of game files '. It should validate some missing files and download them. After it is complete, boot the game up again and repeat step 1 and 2 to see if you get the achievement.Gnome Alone. If you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space. If you did not also receive the achievement 'Manufacturing Ascent', Newell has abandoned his plans to shoot Noam Chomsky into space. 21.59% Rare - 78.4 EXP. A homage to Chompski's adventure has already been added to Left 4 Dead 2, Half-Life: Alyx and Half-Life 2: Episode 2 in the form of a new achievement, too. It's called Gnome Alone, with the description: "If you are reading this achievement, Gabe Newell has successfully launched Gnome Chompski into space." This wasn't all for lols, though.
Welcome to Half-Life 2: Episode Two - 2013 version, game walkthrough!This walkthrough is done on the hardest difficulty and gameplay style is smooth run withTHE METHOD. Basically just slide the gnome inside the car through the gap behind the car (aka the rear window) using your gravity gun - To make sure the gnome stays secure inside the car, just press S for a few seconds. Do it slowly. ks3RQU.