How Do You Unlock All The Islands In GTA 4?

Quick Fact
Liberty City in Grand Theft Auto IV spans roughly 8.1 square kilometers and splits into four main islands. Even in 2026, the game’s map still stands out as a gold standard for urban open-world design. The heart of Algonquin, its central island, sits at about 40.7128° N, 74.0060° W.

What’s the geographic breakdown of Liberty City’s islands?

Liberty City isn’t just a setting—it’s practically a character, a stylized New York stitched together from four distinct boroughs. The islands aren’t random; they’re deliberate reflections of real-world urban landscapes. Algonquin packs in the skyscrapers like Manhattan’s core, Dukes sprawls like Queens’ working-class neighborhoods, Bohan clings to industry like the Bronx, and Broker hugs the waterfront like Brooklyn. Even the bridges—once locked down—weren’t just gameplay mechanics. They were story tools, mirroring how cities restrict movement based on class, status, or perceived threat.

Which missions unlock each island?

Why were the bridges locked at the start of the game?

Those bridges weren’t just decorative—they were narrative handcuffs. Niko arrives in a city under lockdown, a clear reference to the heightened security theater that defined New York after 2001. The famous "Three Leaf Clover" heist isn’t just a money grab; it’s a metaphor for tearing down systemic barriers. And Algonquin, the city’s pulsating core, stays off-limits until Niko proves his loyalty to the underground. It flips the script on who really controls movement in the city.

Here’s the thing: the island design isn’t random. It’s a sharp commentary on urban inequality. Bohan, the poorest borough, gets cut off early—no bridges, no easy way out. Meanwhile, Algonquin teems with landmarks: the Rotterdam Tower (clearly standing in for the Empire State Building), the Hove Beach boardwalk, even a Statue of Happiness. These aren’t just throwaway details—they’re deliberate storytelling, embedding real-world class divides into the game’s fabric.

How do you access all islands in GTA 4?

As of 2026, GTA IV still runs on modern platforms thanks to backward compatibility and digital storefronts, though Rockstar hasn’t touched the map in over ten years. If you’re diving back in today, here’s what you need to know:

• Access: Broker and Bohan are yours from the get-go. Dukes opens up after "Tricks of the Trade," while Algonquin waits until you finish "Blow Your Cover for Elizabeta Torres."
• Travel: Taxis become your best friend—Niko’s visa issues make public transit unreliable early on. The subway exists but crawls at a snail’s pace.
• Easter Eggs: Firefly Island (Coney Island) is a hidden treasure, but you’ll need to wait until late in the game to reach it fully. Bring a jetski—there’s no bridge.
• Real-World Tip: If you’re mapping Liberty City onto NYC, use the Brooklyn Bridge as your anchor. It’s the first crossing Niko can use once the terrorist threat lifts.

Whether you’re chasing achievements or just soaking in the city’s decaying neon glow, Liberty City rewards patience. Just don’t expect the bridges to cooperate until you’ve put in the work.

Rockstar Games – GTA IV Official Site

Wikipedia – Grand Theft Auto IV

National Park Service – New York City Mapping Resources

What’s the fastest way to unlock all islands?

Honestly, this is the most straightforward path. The game hands you Broker and Bohan immediately, so you can start exploring right away. "Tricks of the Trade" unlocks Dukes, but don’t rush—take your time in each borough. Algonquin, the grand finale, only opens after "Blow Your Cover for Elizabeta Torres." Miss that mission, and you’ll be stuck staring at those bridges for weeks.

Can you explore all islands without completing the main story?

Broker and Bohan are yours from day one, but the other two islands? They’re locked behind story progression. Dukes won’t open until you finish "Tricks of the Trade," and Algonquin stays behind a virtual wall until you complete "Blow Your Cover for Elizabeta Torres." The game’s design forces you to engage with the story if you want the full experience.

What happens if you skip the unlock missions?

Here’s the harsh truth: skipping those unlock missions means missing huge chunks of the game. Algonquin, in particular, is packed with side missions, landmarks, and story beats you’ll never see. And honestly? The city feels incomplete without it. If you’re the type who rushes through main missions, you’re doing yourself a disservice.

Are there any hidden shortcuts to unlock islands faster?

Some players swear by console commands or glitches, but those aren’t the intended way to play. If you’re looking for an authentic experience, stick to the missions. The unlocks are designed to coincide with story progression, so rushing them would just leave you with half the city inaccessible.

Do you need to complete side missions to unlock islands?

Side missions are great for cash and chaos, but they won’t open up new islands. The triggers are strictly tied to main story missions: "Tricks of the Trade" for Dukes and "Blow Your Cover for Elizabeta Torres" for Algonquin. Focus on those, and the rest will fall into place.

What’s the best strategy for unlocking islands efficiently?

Start by roaming Broker and Bohan—they’re yours from the beginning. Once you hit "Tricks of the Trade," unlock Dukes and dive into its missions. Save "Blow Your Cover for Elizabeta Torres" for last; Algonquin’s the payoff. Don’t just rush through—take in the sights, hit up side jobs, and soak in the atmosphere. The unlocks will happen naturally as you progress.

Can you return to locked islands later?

No need to panic if you miss something early on. Once you complete the required missions, those islands open up permanently. Broker and Bohan are always there, Dukes unlocks after "Tricks of the Trade," and Algonquin follows suit after "Blow Your Cover for Elizabeta Torres." The game doesn’t take access away, so you can revisit anytime.

What’s the hardest island to unlock?

Algonquin isn’t just locked behind a mission—it’s the most content-packed island in the game. You’ll need to finish "Blow Your Cover for Elizabeta Torres" to access it, and once you’re in, you’ll find side missions, landmarks, and story beats galore. It’s worth the wait, but it’s definitely the toughest nut to crack.

Do all islands have the same amount of content?

Algonquin is the clear winner here, packed with missions, landmarks, and side activities. Dukes and Bohan are solid but lean more toward side content. Broker, being the smallest, has the least to offer. If you’re chasing achievements or just want the full experience, Algonquin’s where it’s at.

What’s the most overlooked island?

Most players rush through Bohan because it’s not as flashy as Algonquin or as sprawling as Dukes. But here’s the thing—it’s got some of the best side missions in the game, and its industrial aesthetic gives it a gritty personality you won’t find elsewhere. Don’t sleep on Bohan; it’s a hidden gem.

Are there any islands that stay locked forever?

Some players worry they’ll miss an island forever, but that’s not the case. Broker and Bohan start open, Dukes unlocks after "Tricks of the Trade," and Algonquin follows after "Blow Your Cover for Elizabeta Torres." The game’s designed so you’ll eventually see everything—just keep playing.