There are a huge number of GTA 5 custom maps. Most will be forgotten. The ones that will stand the test of time are the ones that helped move the scene forward in a specific way: be it tooling, ambition, design or community impact.
Companion to the most popular custom maps page.
Liberty City for V
Had the largest scope of any project in the scene. Worked on for years. Ported GTA IV's Liberty City into V. Even unfinished, it helped raise the bar for what custom maps could look like. See the Liberty City mod page for details.
Vice City Remastered
The 2002 game's city, rebuilt in V. Long-running project. Exists as inspiration even when it doesn't fully come together. More on the Vice City Remastered page.
Major MLO collections
The MLOs of name-brand creators that changed the way RP servers were run. Specific names depend on the marketplace, but the impact is felt across the wider ecosystem.
What 'mattered' actually means here
Downloads aren't how we rank our lists. The maps that made our lists are the ones that inspired other modders, got there first, created a subgenre, or are still going strong as long-running community projects.