Zombie Outbreak Simulator vs Topia World Builder
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Zombie Outbreak Simulator
Simulate and customize zombie outbreaks in real-world locations using Google Maps. Control outbreak parameters, observe chaos unfold, and even join the fight with military interventions. Explore thousands of player-created maps or offline options.
- Real-world map simulation with Google Maps integration
- Customizable outbreak parameters (zombie speed, civilian numbers, etc.)
- Observe infection spread from satellite to street view
- Direct intervention with bombs, soldiers, and helicopters
- Thousands of player-created maps
- Offline map play
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Zombie Outbreak Simulator is a sandbox app where you can customize your own zombie outbreak. Choose from thousands of real locations around the world on Google Maps! ◆ Over 3 million downloads! ◆ • "a killer timewaster" - Gizmodo • "zombies plus Google Maps equals fun" - Games Radar • "a splendid idea, no matter how omnipresent zombies may be" - Rock, Paper, Shotgun • Apple Staff Favorite in the US, Canada, Brazil, Mexico, Spain and 14 other countries! • Top 5 in Simulation and Strategy on the iPad! Watch a zombie outbreak unfold in real world environments, and alter the outbreak parameters to your liking. Do you prefer old-school slow movers, or the new fast movers? Is the population armed? How well can they shoot? How many police will be on patrol? Customize your own outbreak then watch the chaos unfold. Zoom in and out to keep track of the infection as it spreads across the map! Watch from a high satellite view to get an overview of the infection, or zoom right in and watch as civilians run for their lives, shoot at zombies and inevitably become infected. Keep track of the people's only hope - local law enforcement, as they fight back against overwhelming odds. Join in the action by raining fire from above with Mk81 and Mk82 bombs, delivered by A-10 Tank Killers! Parachute soldiers into the front lines to protect the civilians. Deploy helicopters to rescue civilians before they become overwhelmed. From the Settings screen you can change the following parameters: • Civilian numbers • Civilian armed % • Civilian accuracy • Initial zombie numbers • Zombie outbreak direction (N, E, S, W, Map Wide) • Zombie speed • Infection time (how long it takes for infected civs to turn into zombies) • Number of police • Police accuracy • Soldier accuracy From the Map Select screen you can choose from: • 15 featured online maps, using Google Maps • 5 offline maps (play anywhere even without an Internet connection) • Over 2,500 player maps using Google Maps, created by players of the game at www.class3outbreak.com This free version of the app contains limited features, with in-app purchases for upgrades to unlock the full functionality. Initially you have access to two maps (one online, one offline), limited outbreak settings, and limited numbers of bombs, soldiers and helicopters.
Topia World Builder
Shape a vibrant planet as a divine creator. Sculpt landscapes, grow forests, and populate your world with diverse animal life. Witness ecosystems evolve as you manage your creation.
- Create mountains, valleys, rivers, and oceans
- Spawn and manage large animal herds
- Observe animal interactions and ecosystems
- Save and edit worlds
- Customize land, water, and sky colors
- Supports landscape and portrait modes
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From the Award Winning Studio Crescent Moon Games and Glenn Corpes, one of the creators of the original Populous series of games, comes TOPIA WORLD BUILDER, a unique world building sim, tailored for iOS devices. Topia World Builder is a world creation simulation. You become god and shape the land as you choose, by the use of touch controls. Swipe your finger to create mountains, valleys, rivers, and oceans. Watch trees grow, spawn thousands of animals - and watch them live and die on the planet of your creation! Features: -Create Mountains -Create Valleys -Create Rivers -Create Oceans -Spawn various animal types -Build enormous herds of animals -Watch predators attack other animals -Save your worlds so you can edit them later -Change the color of land, water, sky -Play in both landscape and portrait modes
Screenshots
Verdict
The clearest difference is price: Zombie Outbreak Simulator at Free against Topia World Builder's $1.99. Zombie Outbreak Simulator also leads on rating (4.1 vs 3.6) and review sentiment (69% vs 57%). Topia World Builder's advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Zombie Outbreak Simulator is free to download; Topia World Builder costs $1.99 up front. Zombie Outbreak Simulator sells 10 one-off in-app purchases. Topia World Builder asks for nothing beyond the download.
Zombie Outbreak Simulator holds the better App Store score, 4.1 against 3.6. That said, the two scores are not equally well evidenced: Zombie Outbreak Simulator has 1.7K ratings behind it against 236, so its average is the more settled of the two. Written reviews point the same way: 69% of Zombie Outbreak Simulator's written reviews are positive against 57% of Topia World Builder's.
Zombie Outbreak Simulator ships an update every 3 months, Topia World Builder every 6 weeks. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.
| Parameter | Zombie Outbreak Simulator | Topia World Builder |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 4.1 (1.7K ratings) — better | 3.6 (236 ratings) |
| Positive reviews | 69.3% of reviews — better | 57.2% of reviews |
| Number of ratings | 1.7K — better | 236 |
| Update frequency | Every 3 months | Every 6 weeks — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Best chart rank | — | #71 — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 12.0 | 5.1.1 — better |
| Further details — not scored | ||
| Size | 103 MB | 57 MB |
| Age rating | 12+ | 4+ |
| Developer | Binary Space Pty Ltd | Crescent Moon Games LLC |
Customer experience
Zombie Outbreak Simulator
Topia World Builder
User reviews
Zombie Outbreak Simulator
From 1.7K App Store ratingsWhat we love
- 🚀 Great simulator
- 🚀 Immersive gameplay
- 👍 Beautiful graphics
- 👍 Addictive and fun
Room to improve
- 💰 Pay-to-play model
- 🐛 Bugs and glitches
- 🐛 AI issues
- 🔒 Limited free content
Topia World Builder
From 236 App Store ratingsWhat we love
- 🚀 Smooth and responsive
- 👍 Beautiful graphics
- 🌳 Relaxing sandbox experience
Room to improve
- 🐛 Unbalanced animal populations
- 🔍 Lack of content and features
- 💤 Gets boring quickly
Bugs and requests
Zombie Outbreak Simulator
Reported bugs
4 issues- Civilians getting stuck in buildings
- Online and player-created maps not working
- Issues with watching ads for in-game rewards
- Restore purchases not working after reinstallation
Requested features
8 requests- Add more military units (tanks, helicopters, etc.)
- Implement a sandbox mode with more customization
- Improve zombie and civilian AI
- Add more maps and locations
- Introduce different zombie types and mutations
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- Allow players to control individual units
- Implement a base-building or fortification system
- Add a wave-based survival mode
Topia World Builder
Reported bugs
3 issues- Birds getting stuck over the ocean
- Land animals drowning in water
- Inconsistent controls and UI
Requested features
5 requests- Add humans and civilization building
- Introduce natural disasters and weather effects
- Expand animal and plant diversity
- Improve ecosystem balance and predator-prey dynamics
- Implement saving and loading of created worlds
In-app purchases
Zombie Outbreak Simulator
- Unlock Offline & Online Maps$0.99
- Unlock Outbreak Settings$0.99
- Unlimited Soldiers$0.99
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- Unlimited Mk81 Bombs$0.99
- Unlimited Mk82 Bombs$0.99
- Unlimited Helicopters$0.99
- Unlock Player Maps - Americas$1.99
- Unlimited Bombs, Soldiers & Helicopters$2.99
- Unlock All Player Maps$2.99
- Unlock Everything$4.99
Topia World Builder
No in-app purchases
Questions
Is Zombie Outbreak Simulator free?
Is Topia World Builder free?
Which has better reviews, Zombie Outbreak Simulator or Topia World Builder?
Do Zombie Outbreak Simulator or Topia World Builder have ads?
Which is updated more often, Zombie Outbreak Simulator or Topia World Builder?
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