# Brian - Pet Evolution

> Physics-based side-scrolling pet evolution game with mutation and obstacle survival. (iPhone/iPad app by SweatyChair Pty. Ltd..)

- Source: https://appshunter.io/ios/app/brian-pet-evolution/id1105720370 (this page in markdown: same URL + `.md`)
- Developer: [SweatyChair Pty. Ltd.](https://appshunter.io/developer/781132111)
- Category: Games, Adventure, Simulation
- Price: Free with in-app purchases
- Rating: 3.80/5 from 63 App Store ratings · 43 written reviews indexed
- Age rating: 9+
- Requires: iOS 7.0 · 79 MB
- Languages: American English
- Released: 2016-07-14
- Data updated: 2026-08-13
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/brian-pet-evolution/id1105720370/reviews.md

## What is Brian?

100,000+ downloads all over the world!

Brian is a physics-based, Tamagotchi, side-scrolling pet game.

Brian is a very fragile, sensitive brain-like blob, that requires the utmost care. By injecting DNA to Brian it could mutate to different forms like Angel Brian with spider legs, Chicken Leg Brian with Tentacle arms, tentacle Brian with human ears, anything is possible.

As you the mad scientist, creator and father of Brian it's your sole responsibility to take good care of it or it will explode into happiness.

What happen if your Brian died? Buy another one!


Features:
- Cuteness, adorable with a little bit of contrast
- Deadly obstacles: slope, river, mines, lasers, missiles
- Most likely broken physics
- Pet evolutions and mutations
- Maybe a little bit of black humour

## Key features

- Physics-based gameplay
- Pet evolution and mutation
- Tamagotchi-style care
- Side-scrolling obstacle navigation
- DNA injection for mutations
- Black humor elements

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Bag of Poop | $0.99 | one-time |
| Tons of Poop | $3.99 | one-time |
| Truck of Poops | $14.99 | one-time |
| Unlimited Pack | $3.99 | one-time |
| Special Pack | $3.99 | one-time |


## Recent user reviews (10 of 43)

All indexed reviews: https://appshunter.io/ios/app/brian-pet-evolution/id1105720370/reviews.md

### 3/5 — Very glitchy but still good kinda

*2026-01-17, version 1.1.1*

I say it’s a good game it’s just you literally can’t run out of lives because everytime I get to 6 it crashes me and gives me back my lives and also a little unclear but it’s still pretty good and fun

### 1/5 — Not worth downloading

*2025-12-30, version 1.1.1*

First of all Brian candy die to literally anything and second of all when I feed him the food drops ontop of his head killing Brian and I cant do anything about it and all I can do is watch my progress get deleted right before my eyes.PLEASE Don’t EVER   MAKE A GAME EVER AGAIN.AND WIPE THIS GAME OF THE APPSTORE.

### 5/5 — help

*2025-08-29, version 1.1.1*

everytime he gets sick and i try to stick the syringe in him he dies no matter where i give him the injection

### 1/5 — Glitched and abandoned

*2025-02-01, version 1.1.1*

The story of a sweatychair app - doesn’t work, abandoned. Do not download.

### 4/5 — Fun game

*2024-02-28, version 1.1.1*

I got so stressed he was going to die when I was playing, and when I closed the game because it was simply too much, I was still super stressed he was gonna die. Fun game to get if you like stress👍

### 1/5 — >:(

*2024-02-25, version 1.1.1*

Brian sold me fentanyl

### 3/5 — Не понятно

*2023-10-08*

Игра крутая но ничего не понятно он голодный я кидаю ему еду он умирает не кидаю на него еду умирает как его покормить

### 1/5 — Dies too easy

*2023-08-27, version 1.1.1*

Dies to easy and is a cash grab when you die and really glitchy but If it wasn’t like that would be a good game

### 4/5 — Relaxing

*2023-07-29, version 1.1.1*

This game is very relaxing I recommend you to play.

### 1/5 — It sucks!

*2023-07-27, version 1.1.1*

I can’t even feed him and it is so boring. Brian is cute (a bit) though

## Frequently asked questions about Brian

### What is Brian - Pet Evolution?

Brian - Pet Evolution is a physics-based, side-scrolling game where you care for a sensitive blob-like creature named Brian. You can inject DNA to mutate Brian into various forms and must navigate deadly obstacles to keep it happy.

### How does pet evolution work in the game?

Pet evolution is achieved by injecting DNA into Brian. This allows it to mutate into different forms, such as Angel Brian with spider legs or Chicken Leg Brian with tentacle arms, leading to unique appearances and potentially different gameplay interactions.

### What happens if my Brian dies?

If your Brian perishes, the game indicates that you can simply buy another one. This suggests a mechanic where the creature's lifespan or survival is a core element, and new creatures can be acquired.

### What kind of obstacles will I face?

You will encounter a variety of deadly obstacles designed to challenge Brian's survival. These include slopes, rivers, mines, lasers, and missiles, requiring careful navigation and management of Brian's fragile state.

### Is the game free to play?

The game is free to play but includes in-app purchases. This means you can download and enjoy the core gameplay without initial cost, but may have options to purchase items or features within the app.

## Version history (last 3 releases)

### 1.1.1 — 2017-01-09

This app has been updated by Apple to display the Apple Watch app icon.

Thank you very much for liking Brian. We are very surprised it has achieved 100,000 downloads all over the world! Now we bring you the NEW 1.1.0, which fixed most major bugs and added some feature for progression, so you can enjoy more the adventure with Brian!

- Added background props that can be unlocked in your journey, get them ALL!
- Fixed UI sometime hidden bug
- Fixed wrong mutation position on 2 duplicated limbs
- Performance boost
- Removed “Read Phone State” permission

### 1.0.1 — 2016-07-20

- Fixed a bug about UI disappeared after Brian die and restart

- Other minor bugs fix

Thank you for liking and supporting Brian. We knew this game is far away from perfect, but there's still many features we want to add into the game and bring the laugh to everyone. Please stay tuned!

### 1.0.0 — 2016-07-14

No release notes.

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## More apps by SweatyChair Pty. Ltd.

- [Photo Brain](https://appshunter.io/ios/app/photo-brain/id921856898)
- [No Humanity - The Hardest Game](https://appshunter.io/ios/app/no-humanity-the-hardest-game/id961835849)
- [Go2School](https://appshunter.io/ios/app/go2school/id1007214356)
- [Rainmaker: The Beautiful Flood](https://appshunter.io/ios/app/rainmaker-the-beautiful-flood/id1067212421)
- [Tingus Goose: Weird Idle Game](https://appshunter.io/ios/app/tingus-goose-weird-idle-game/id6444581718)

All apps by SweatyChair Pty. Ltd.: https://appshunter.io/developer/781132111

## Related topics

[brian](https://appshunter.io/ios/topics/brian) · [pet evolution](https://appshunter.io/ios/topics/pet-evolution)

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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 2026-08-13.*