# Boulder Breakers — Co-op Rock Tower Defense

> Co-op Rock Tower Defense (iPhone/iPad app by Joel Brecker.)

- Source: https://appshunter.io/ios/app/boulder-breakers/id6818915479 (this page in markdown: same URL + `.md`)
- Developer: [Joel Brecker](https://appshunter.io/developer/1466722019)
- Category: Games, Entertainment, Family, Strategy
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 4 MB
- Languages: American English
- Released: 2026-10-12
- Data updated: 2026-10-18

## What is Boulder Breakers?

Boulders are rolling, and every one you break splits into smaller pieces. Build towers, pool your money with your team and stop every last rock before it gets through.

Boulder Breakers is a 3D co-op tower defense game for up to four players on iPhone, iPad and Mac. Play alone, team up with up to three computer partners, or play online with friends through Game Center.

BREAK ROCKS TOGETHER
• Up to 4 players share one pool of money, so plan your builds as a team
• Computer partners place and upgrade towers on their own
• Invite friends or quick-match online, with in-game chat
• If anyone in the room owns a map, everyone in the room can play it

20 TOWERS
From the Miner Pick and Crossbow to the Tesla Coil, Railgun, Plasma Orb and Meteor Caller. Upgrade each one for speed, range or damage. Trees, rocks and cliffs block line of sight, so placement matters.

13 MAPS
Green Meadow, Desert Canyon, Frozen Tundra, Volcanic Rift, Murky Swamp, Crystal Caverns, Mountain Pass, Tropical Island, Autumn Forest and Ancient Ruins, plus Dune Sea, Twilight Bayou and Glacier Gorge in the Frontier pack.

COMPETE AND COLLECT
• Leaderboards for rocks destroyed, money earned and money spent on every map
• 25 achievements on Game Center
• Cosmetic skin sets for your towers and rocks: Volcanic, Glacier, Arcade and Royal

FAIR PRICING
Free to download, with Green Meadow and Mountain Pass free to play. Unlock the full game, map packs and skins with one-time purchases. No subscriptions, no ads and no consumables. Buy once and play on iPhone, iPad and Mac, with Family Sharing.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Full Game | $4.99 | one-time |
| Frontier Pack | $1.99 | one-time |
| Volcanic Set | $1.99 | one-time |
| Arcade Set | $1.99 | one-time |
| Royal Set | $1.99 | one-time |
| Glacier Set | $1.99 | one-time |
| All Skins Bundle | $4.99 | one-time |


## Is Boulder Breakers safe?

Not enough ratings yet to assess Boulder Breakers.

## Is Boulder Breakers legit?

Boulder Breakers appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Boulder Breakers is 75 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 1 release)

### 1.0 — 2026-10-16

No release notes.

## More apps by Joel Brecker

- [Bullet-Journal v2](https://appshunter.io/ios/app/bullet-journal-v2/id1513040157)
- [Wacky Genes](https://appshunter.io/ios/app/wacky-genes/id1641711708)
- [Health HQ+](https://appshunter.io/ios/app/health-hq-plus/id6444343202)
- [Stone Defender: Infinite TD](https://appshunter.io/ios/app/stone-defender-infinite-td/id6748558876)
- [Forest-Run](https://appshunter.io/ios/app/forest-run/id6757683875)
- [Easli](https://appshunter.io/ios/app/easli/id6759333208)

All apps by Joel Brecker: https://appshunter.io/developer/1466722019

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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 2026-10-18.*