Which of those would you like?
The game didn't have missions. It didn't have villains or health bars or timers. Leo flew for hours—through clouds, past satellites, above oceans he'd only ever seen on TV. He saved a cat from a tree (the cat hissed at him; he laughed). He hovered outside a hospital window and watched a girl take her first breath after a lung transplant. He flew so high the sky turned purple, then black, then a color he had no name for.
You can add Superman to games you already own. For example, Superman mods for Grand Theft Auto V or Minecraft are popular and legal. Check Nexus Mods or other trusted modding communities.
: A free-to-play MMO where you can create your own hero and fight alongside Superman. It is fully compatible with Windows 7 and available on most major superhero game sites . Classic Superman PC Games
This is the closest you will get to flying freely over a massive Metropolis. The game received mixed reviews due to the "health meter" (Metropolis' health instead of Superman's), but the flight physics are still praised today. You can literally fly from street level to the upper stratosphere without loading screens.
with mods is the top choice. It captures the speed, power, and freedom of the character perfectly. Safety Note