How Valve made Half-Life 2 and set a new standard for future games

And Half-Life 2’s gravity gun, which dramatically built on past games’ physics mechanics, is in many ways a  concept that developers are still playing with and expanding on today. Ultrahand, the flagship player ability in 2023’s The Legend of Zelda: Tears of the Kingdom, could be seen as a substantial evolution from the gravity gun. In addition to offering players the ability to pick and place objects in the world, it gives them the power to attach them to one another to build creative contraptions.

There’s also Half-Life 2’s approach to using environmental lines and art cues to guide the player’s attention through realistic-looking environments. The game was lauded for that at the time, and it was an approach used by many popular games in the years to come. Today, many studios have moved on to much more explicit player cues like the yellow climbing holds in so many recent AAA titles. As you’ll see in an upcoming article this week written by someone who played Half-Life 2 for the very first time in 2024, Half-Life 2’s approach may have set the stage, but modern players might expect something a little different.

One thing about the environment design that Half-Life 2 was praised for hasn’t been replaced these days, though: a commitment to subtle environmental storytelling. World-building and vibes are perhaps Half-Life 2’s greatest achievements. From BioShock to Dishonored to Cyberpunk 2077, this might be the realm where Half-Life 2’s influence is still felt the most today.

A legacy remembered

Looking back 20 years later, Half-Life 2 isn’t necessarily remembered for radical new gameplay concepts. Instead, it’s known for outstanding execution—and developers everywhere are still applying lessons learned by that development team to try to chase its high standard of quality.

Even at the time, critics noted that it wasn’t exactly that there was anything in Half-Life 2 that players had never seen before. Rather, it was the combined force of quality, scope, presentation, and refinement that made an impact.

Of course, Valve and Half-Life 2 are also known for multiple memorable cultural moments, some of the industry’s most infamous controversies, and playing a big part in introducing digital distribution. We’ll explore some of those things as we count down to the “Red Letter Day” that is this Saturday.