# UMod: Ultimate Sandbox Online — An action multiplayer sandbox

> Multiplayer physics sandbox game with unlimited tools, mods, and game modes. (iPhone/iPad app by Chu The anh.)

- Source: https://appshunter.io/ios/app/umod-ultimate-sandbox-online/id1576466654 (this page in markdown: same URL + `.md`)
- Developer: [Chu The anh](https://appshunter.io/developer/1116457198)
- Category: Games, Action, Simulation
- Price: Free with in-app purchases
- Rating: 3.60/5 from 255 App Store ratings · 163 written reviews indexed
- Age rating: 17+
- Requires: iOS 13.0 · 319 MB
- Languages: English
- Released: 2021-08-01
- Data updated: 2026-07-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/umod-ultimate-sandbox-online/id1576466654/reviews.md

## What is UMod?

Want to join the biggest physic sandbox game on mobile? Ultimate Sandbox is right here for you.

Enter the gigantic physics simulated environment with unlimited toolsets and unlimited amazing mods. No rules, no limitations, you are free to do anything with the world. Explore many interesting game modes that match your style. Join our world on your own way, alone or with friends.

Here are the top features of our game:

- Accurate Physics system: our game uses the most advanced Physics technology, to give you the best physics environment you've ever seen.

- Many transports to pick from: Feel tired of running? Don't worry, our game provides plenty of transports for you: garry's jetpack, car, plane, aircraft, tank, submarine, etc , you name it.

- Online with other players: Feel lonely? You can create your own world yourself, or get help from other friends. Show them your fascinating mod!

- Lots of items: Select what you need from hundreds objects, to help you build your own creative world.

- Stylist 3D graphic: The game has a nice visual style that hardly found on any games with the same genre.

- Interesting mods & game modes: play anything that you want: Hunting Prop, Who is Garry, Prop Battle Royale, etc.

With more and more updates are coming, Ultimate Sandbox is gonna be the biggest sandbox game of all time. What are you waiting for? Grab your phone and start building your dream world with us, today!

## Key features

- Accurate physics system
- Wide variety of transports
- Online multiplayer mode
- Hundreds of buildable items
- Stylized 3D graphics
- Diverse mods and game modes

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Basic Member program | $1.99 | one-time |


## What do users think of UMod?

Overall sentiment: mixed

**Pros**

- 🎮 Fun sandbox gameplay
- 🤝 Multiplayer functionality
- 💡 Customization options
- 🏆 Nostalgic appeal

**Cons**

- 🐛 Frequent crashes and bugs
- ⏱️ Slow loading times
- 🔒 Lack of account/save system
- 🤖 Limited NPC and enemy variety

**Commonly reported bugs**

- Saving and loading issues
- Multiplayer connectivity problems
- Crashes when using certain items or features
- Compatibility issues on older devices

**Most requested features**

- Add more weapons and vehicles
- Improve server stability and online play
- Implement an account system to save progress
- Expand the selection of NPCs and enemies
- Increase graphical fidelity and performance

## Recent user reviews (10 of 163)

All indexed reviews: https://appshunter.io/ios/app/umod-ultimate-sandbox-online/id1576466654/reviews.md

### 5/5 — I HAVENT PLAYED THIS IN A WHILE

*2026-05-27, version 3.0.0*

Read the title I haven’t played this in a while I’m finna check it out but wetbraef-breaf gmod isn’t free it’s $10.00 or sometimes you can get it for $2 or $5

### 1/5 — U for ugly

*2026-01-12, version 3.0.0*

I can’t spawn mobs or monsters

### 2/5 — Annoying

*2025-12-24, version 3.0.0*

The Thing annoying me is that I can’t change my character and also it is saying that I can’t connect online and also I’m a girl not a man. I would like a reply from you already I’m annoyed I’m connected to the internet and everything.

### 4/5 — Що. .

*2025-11-14, version 3.0.0*

Ви думаєте якщо повернули старі версії зможете знову зробити популярною гру?. .

### 2/5 — Жаль

*2025-10-12, version 3.0.0*

Игра ухудшилась, с новым обновлением стало не игра а помойка.ВЕРНИТЕ ВСЁ КАК БЫЛО! Не зря говорят раньше было лучше. А пока две звезды, одну звезду добавил потому что я в неё раньше играл и она мне нравилась.

### 1/5 — 광고

*2025-10-05, version 3.0.0*

아니 광고만 플레이 누를때 무조건 나오고 케릭터도 없고

### 1/5 — I can’t drive any cars

*2025-09-02, version 3.0.0*

I can’t drive any cars I’ve tried and tried I just can’t

### 5/5 — Amazing

*2025-08-09, version 3.0.0*

The best sandbox game

### 4/5 — ít đồ quá

*2025-06-22, version 3.0.0*

chúng tôi cần nhiều đồ hơn không có npc ít skin

### 1/5 — !!!

*2025-06-14, version 2.6.5*

ЗАМЕТЬТЕ АДМИНЫ , а сделать обновление новое, и нормальное чтоб люди снова тянулись в старую игру , не?
Я играл в вашу игру около 4 лет и за все время , мне все нравилось и было бы хорошо сделать крупное обновление, где будет добавлено все как в играх garrys mod , не обязательно даже графику , а именно предметов , транспорта и механизмов , сделать норм онлайн без проблем и продвигать игру в топ , это очень хороший проект который админы игры и разработчики просто руинят и тянут вниз , в ней не выходит нормальных обновлений уже около 2 лет и если раньше серверы игры переполнялись людьми , то сейчас там нету - никого.

## Frequently asked questions about UMod

### What is UMod: Ultimate Sandbox Online?

UMod: Ultimate Sandbox Online is a mobile game that offers a gigantic physics-simulated environment with unlimited tools and mods. Players can freely create, build, and interact in various game modes, either alone or with friends online.

### What are the key features of this sandbox game?

Key features include an accurate physics system, a wide selection of transports like cars and planes, online multiplayer for playing with others, hundreds of items for building, stylized 3D graphics, and interesting mods and game modes such as Hunting Prop and Prop Battle Royale.

### Is UMod: Ultimate Sandbox Online free to play?

Yes, the game is free to download and play. However, it does offer in-app purchases, allowing players to acquire additional items or features within the game.

### What kind of game modes are available?

The game offers a variety of interesting game modes designed to match different player styles. Examples mentioned include Hunting Prop, Who is Garry, and Prop Battle Royale, providing diverse gameplay experiences within the sandbox environment.

### Can I play with friends in this game?

Absolutely. The game features an online multiplayer mode where you can create your own world or join friends. You can play alone or with others, and even showcase your custom mods to them.

## Version history (last 5 releases)

### 3.0.0 — 2025-06-17

A remake version from popular time in 2019, with improved networking and optimizations

### 2.6.5 — 2023-09-14

+ Temporarily remove some cloud-related functions.
+ Fix a case where the game is stuck when you can't connect to backend's api.
+ Fix 'Kick' button not working properly
+ New saving file format. Now saving onto a persistent path for all platforms. In the future, there will be an option to easily transfer the maps between devices .
+ Add an option to delete saving files in main menu, as well as one to choose a file before creating room in singleplayer & multiplayer mode.

### 2.6.3 — 2022-11-28

+ Fixed the dark ocean in Ocean map.
+ Fixed texture issues on Volcano & Hill maps.
+ Improved ads flow, ads are no longer displayed when entering or exiting game room.
+ Improved kick feature.
+ Improved cheat detection system.
+ Added a new [Max FPS] slider.
+ (Internal) In-game scene flow has been improved in preparation for new feature(s).

### 2.6.1 — 2022-01-21

+ Fix a bug causes iOS to stuck on loading screen.
+ Fix a bug with chat can cause lag to other players.
+ Remove NPC from Lava Boss.
+ Reduce healing effect from Lava's Healing Eggs.
+ Fix a bug where Ocean map can be loaded properly.

### 2.6.0 — 2021-12-23

+ New Christmas UI theme.
+ New map upload & share system.
+ Add a new game mode: Free For All.
+ Add a new game mode: Props Hunt.
+ Add a new package : Christmas aka Snow pt 2.
+ Fix a bug where character being cloned in some cases.
+ Fix some bugs with ragdoll.
+ Fix a bug where Hill map is error on load.
+ Fix a bug cause some vehicle 
+ Fix various bugs.

## Apps similar to UMod

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Vmod - Multiplayer Sandbox Fun](https://appshunter.io/ios/app/vmod-multiplayer-sandbox-fun/id1592422126) | 3.8 (1,413) | Free | Games |
| [Ragdoll Simulator](https://appshunter.io/ios/app/ragdoll-simulator/id1567709654) | 4.0 (1,197) | Free | Games |
| [Sandbox 3D](https://appshunter.io/ios/app/sandbox-3d/id1446635457) | 4.0 (832) | Free | Games |
| [Evertech Sandbox](https://appshunter.io/ios/app/evertech-sandbox/id1422791215) | 4.2 (2,578) | Free | Games |
| [Simple Sandbox 2](https://appshunter.io/ios/app/simple-sandbox-2/id1529595468) | 3.9 (1,171) | Free | Games |
| [RSandbox - sandbox, TTT, Bhop](https://appshunter.io/ios/app/rsandbox-sandbox-ttt-bhop/id1546265471) | 3.8 (141) | Free | Games |

## More apps by Chu The anh

- [The Street Life](https://appshunter.io/ios/app/the-street-life/id6474284064)

All apps by Chu The anh: https://appshunter.io/developer/1116457198

## Related topics

[dmod](https://appshunter.io/ios/topics/dmod) · [sandboxx community](https://appshunter.io/ios/topics/sandboxx-community) · [sandbox online](https://appshunter.io/ios/topics/sandbox-online) · [gmod sandbox](https://appshunter.io/ios/topics/gmod-sandbox) · [gmod](https://appshunter.io/ios/topics/gmod) · [the sandboxx](https://appshunter.io/ios/topics/the-sandboxx)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-31.*