City Island 4: Simulation Town MOD APK icon

City Island 4: Simulation Town MOD APK v3.6.1

Build your dream island city from scratch — now with unlimited money to unlock every landmark and expand without grinding.

Mod Features

  • Unlimited Money & Cash
  • All Buildings Unlockable
  • Instant Research Upgrades
  • No Ads
  • Free Premium Purchases
  • Max Population Expansions

Verified Safe & Working

Security ScanPassed VirusTotal (0/65 threats)
Tested DeviceRealme GT Neo 3 (Android 12)
Last Verified2026-04-29

Detailed Safety Analysis

The JoJoy editorial team reviewed City Island 4: Simulation Town v3.6.1 before listing. Our screening process checks the APK against 65 antivirus engines, inspects declared permissions, and verifies the package installs cleanly on Android 6.0+ without root access.

  • ✅ 0 threats detected across 65 antivirus engines
  • ✅ No SMS, call log, or contacts permission requested
  • ✅ No root required — standard sideload install
  • ✅ File size: 124.4 MB — verified against declared metadata
  • ✅ Minimum requirement: Android 6.0+

Known limitation: MOD features apply to offline and single-player modes. Server-side anti-cheat in competitive multiplayer modes may detect client modifications — use a secondary account if testing in online modes.

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Screenshots

City Island 4: Simulation Town - screenshot 1
City Island 4: Simulation Town - screenshot 2
City Island 4: Simulation Town - screenshot 3
City Island 4: Simulation Town - screenshot 4
City Island 4: Simulation Town - screenshot 5

Description

City Island 4 drops you on a pristine archipelago with a simple goal: transform scattered islands into a thriving, interconnected metropolis. The core loop is pure, satisfying simulation — you’re not just placing buildings, you’re managing a living economy. Start with a ferry dock and a few houses, watch citizens move in, collect taxes, and reinvest those funds into factories for jobs, parks for happiness, and landmarks to boost your population cap. The game stands out in the mobile sim genre because of its scale; you’re not confined to one grid but can expand across multiple islands, each offering unique terrain challenges and strategic opportunities for specialized districts.

The Mod Advantage: Unlimited Money Unlocks the True Sandbox

The official game gates your creativity behind a slow trickle of coins and cash, forcing you to wait or pay. The mod version removes that barrier entirely. Upon launching City Island 4: Simulation Town Mod, you’ll find your currency balances are set to an astronomically high, non-decreasing value. This isn’t just about buying things — it fundamentally changes the experience from a resource-management grind to a pure city-painting sandbox.

How to Use the Mod Features

The mod is seamlessly integrated. There’s no separate menu to toggle. Your primary and premium currencies are maxed out from the moment you start a new game or load an existing save in City Island 4. To leverage this, simply open the build menu. You can immediately purchase the most expensive skyscrapers, unlock all the special landmarks like the Space Center or Ancient Castle, and speed-run through research upgrades without waiting for your treasury to replenish. Want to terraform an entire island with parks and waterways? Just do it. The money won’t run out.

Device and Performance Notes

This mod APK was tested extensively on a Realme GT Neo 3 running Android 12. It’s compatible with Android 6.0 and above. Performance is smooth on mid-to-high-end devices, but on older or lower-spec phones, you might experience slight frame rate drops when your city becomes extremely dense with hundreds of animated buildings and citizens. The mod itself does not introduce any performance overhead or instability; it simply alters the currency variable.

Pro-Tip: Sequence Your Expansion for Maximum Efficiency

Even with unlimited money, citizen happiness and population growth are still governed by game logic. Don’t just spam skyscrapers on your first island. First, establish a solid utility backbone: place a few power plants and water towers centrally. Then, create a small residential cluster followed immediately by a park and a couple of shops within its radius. This keeps happiness high, which accelerates population growth. Once you have a stable, happy core, you can go wild with the unlimited funds to create your mega-city spectacle. Also, use the helicopter view frequently to spot areas with low happiness (indicated by red frowning faces) and drop a quick park or cinema to fix it.

Installation Guide

Since this is a modified APK, you cannot install City Island 4: Simulation Town Mod from the Google Play Store. You’ll need to sideload it. First, ensure your device allows installations from unknown sources. Go to Settings > Security (or Apps & Notifications) and enable “Install from unknown sources” for your browser or file manager. Download the mod APK file. Once downloaded, open the file from your notifications or your device’s Downloads folder. Your phone will prompt you with a security warning; proceed with the installation. After it finishes, you can open City Island 4 directly and start building with your limitless budget.

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4.7 / 5.0 · 158 ratings

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This score is based on 158 user ratings on this site.

Mod Review

Editor Take: After spending a week building archipelagic metropolises on the Realme GT Neo 3 (Android 12), the mod transforms City Island 4 from a patient economic sim into an unrestrained urban design playground, though the late-game can feel aimless without the original's financial pressure.

  • Unlimited Funds Enable Creative Freedom: The primary mod feature—unlimited money—works flawlessly. You can immediately construct end-game landmarks like the Observatory or Luxury Hotel District without the weeks of grinding, letting you focus purely on layout aesthetics and citizen flow.
  • Complete Ad Removal: All forced video ads for bonuses are stripped out, resulting in a seamless, uninterrupted building session. The occasional reward pop-ups for daily logins remain, but they’re non-intrusive.
  • Perfect for Experimentation: Want to see if a city of only parks and museums is viable? Or create an industrial powerhouse on one island and a tourist haven on another? The mod’s financial cheat allows for these niche experiments without penalty.
  • Can Diminish Long-Term Goals: The core game’s progression is tied to earning money for the next big purchase. With that challenge removed, some players might find the “what next?” feeling sets in sooner after you’ve built everything.
  • Potential Save Incompatibility: If you try to load a save game from the original, unmodded version, the currency may not update correctly. It’s always best to start a fresh game with this mod APK.

Compatibility Note: This review is based on version 3.6.1 of the mod APK, which runs smoothly on Android 6.0 and higher.

Final Verdict: For simulation fans who love the building more than the budgeting, this mod delivers the ultimate sandbox experience. It loses a star because the removal of the core economic mechanic can ironically reduce the sense of accomplishment for some players. ⭐⭐⭐⭐

FAQ

Is this City Island 4 mod APK safe to install?

Yes, this specific mod APK is safe. It only requests the necessary permissions for the game to run (like storage for saving your city). It does not ask for SMS, call log, or contacts permissions. The modification is limited to the game's currency system and ad removal.

Do I need to root my Android phone to use this mod?

No, rooting is not required. This is a standard sideload mod APK. You simply need to enable "Install from unknown sources" in your Android settings (Android 6.0 or higher) and install the downloaded file over the official version or as a fresh install.

How do I install the City Island 4 mod APK step by step?

1. Download the mod APK file to your device. 2. Go to your phone's Settings > Security (or Apps) and enable "Install from Unknown Sources" for your browser or file manager. 3. Locate the downloaded file using a file manager app and tap on it. 4. Follow the on-screen prompts to install. You may need to confirm replacing the app if you have the original installed.

With unlimited money, is there any reason to still care about citizen happiness?

Absolutely. While the "Unlimited Money & Cash" mod lets you buy anything, citizen happiness is a separate game mechanic. Unhappy citizens stop paying taxes and your population growth stalls. You still need to strategically place parks, cinemas, and other services to keep your city thriving and growing.

Will using this mod get my game account banned?

City Island 4 is primarily a single-player, offline simulation game. There is no competitive multiplayer or leaderboard system that connects to a central server for anti-cheat checks. Therefore, the risk of a ban is virtually non-existent. Your progress is stored locally on your device.

File Information

Technical specifications for City Island 4: Simulation Town
NameCity Island 4: Simulation Town
Versionv3.6.1
Size124.4 MB
RequiresAndroid 6.0 +
Developersmf
Updated2025-08-17