‘Half-Life 2’ (2004)

With the first Half-Life, Valve brought fans of complex puzzles and high-octane shooters together with one stellar sci-fi. However, its sequel felt like a leap forward through multiple generations — in some ways literally. The game picks up 20 years after its predecessor and brings its mute protagonist, Dr. Gordon Freeman, into a world where humanity is enslaved by a trans-dimensional race.

With cutting-edge tech behind it, Half-Life 2 made everything a weapon via its gravity gun. Why shoot bullets when you can blast buzz saws snatched from a table? Despite the lofty competition of the era, Half-Life 2 became the benchmark for first-person storytelling without the need for slowing down the game for long cutscenes.

Its POV is intimate, and its lovable characters shine amid the bleak world of alien fascism. Beyond that, its tool kit became an open-source playground for users to create their own experiences, years ahead of anything like Minecraft or Roblox.