# Cannon Holdout: Tower Defense — Roguelike survivor pixel game

> Roguelike pixel tower defense with offline play and deep customization. (iPhone/iPad app by Jeong-soo Park.)

- Source: https://appshunter.io/ios/app/cannon-holdout-tower-defense/id6812195690 (this page in markdown: same URL + `.md`)
- Developer: [Jeong-soo Park](https://appshunter.io/developer/1248341387)
- Category: Games, Action, Strategy
- Price: Free with in-app purchases
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 12+
- Requires: iOS 15.0 · 67 MB
- Languages: Korean, European Spanish, American English, Japanese
- Released: 2026-10-11
- Data updated: 2026-10-24
- Monetization: free with in-app purchases

## What is Cannon Holdout?

Cannon Holdout is a pixel tower defense game: one scrap cannon against an endless bug swarm.
Level up, pick one of three parts and build a different cannon every run in this survivor-style roguelike defense you can play offline.
Drag to aim the main gun, bolt on parts as you fight, and hold out to the very end.

• You aim the main gun, parts fire on their own
Drag across the screen and the reticle follows. When the gauge fills, the main gun shells that spot. Choose from 8 main guns, including the Howitzer, Scatter Gun, Rail Gun and Mine Mortar. Weapon parts pick their own targets, and support parts boost attack speed, range and blast radius.

• Pick 1 of 3, a new build every run
Every time the build gauge fills, choose one of three. Match electric, fire, frost, blast and mech elements across 30+ parts to trigger 15+ synergies, and pick one of two awakenings that change how a level 4 weapon fights.

• Every base has its own skill
The scrap cannon drops a barricade, the missile turret calls a salvo. Swap bases and the same deck plays differently.

• A different boss on every stage
39+ bosses come at you with aimed bursts, fan barrages, shields, teleports and summoned minions. Shoot down boss bullets and interrupt their attacks with your main gun and skills. Every enemy and boss you meet goes into the Codex.

• Four regions, rising danger
Rust Flats, Dead Plant, Toxic Works and The Hive. Clear a region and take it on again at a higher danger level, where bosses arrive with extra traits.

• A cannon that keeps growing
Upgrade your main guns and cannon in the Hangar, and fuse three of the same part to raise its grade. Push mythic parts past their limit with Transcendence and slot modules into your cannon.

• A reason to come back every day
Boss Rush, a once-a-day gauntlet of bosses. The Daily Zone, with a different boss for each day of the week. Daily ops, and a supply log that grows the more days you keep it going.

• Offline game, start as a guest
Play without an internet connection and start right away as a guest. Signing in is only needed to buy and keep Core Cells.

No random gacha. Ads are rewarded only (revive, double rewards or reroll) and play only when you choose. No forced ads.

## Key features

- Roguelike survivor-style defense
- Offline play
- Strategic part customization
- Diverse main guns and weapon parts
- Synergistic elemental builds
- Boss battles with unique mechanics
- Daily challenges and rewards

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 2,500 Core Cells | $2.99 | one-time |
| 12,000 Core Cells | $11.99 | one-time |
| 5,500 Core Cells | $5.99 | one-time |
| A Coffee | $0.49 | one-time |
| A Hearty Meal | $2.99 | one-time |
| Care Package | $6.99 | one-time |
| Battle Speed x1.5 | $2.99 | one-time |
| Battle Speed x3 | $2.99 | one-time |
| Ad-Free Double | $5.99 | one-time |
| Battle Speed x2 | $2.99 | one-time |


## Is Cannon Holdout safe?

Not enough ratings yet to assess Cannon Holdout.

## Is Cannon Holdout legit?

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


## Frequently asked questions about Cannon Holdout

### What is Cannon Holdout's gameplay like?

Cannon Holdout is a pixel tower defense game where you control a single scrap cannon against endless waves of bugs. You aim the main gun while parts fire automatically, and you can bolt on new parts to build a different cannon each run.

### Can I play Cannon Holdout offline?

Yes, Cannon Holdout is an offline game. You can play without an internet connection and start as a guest. Signing in is only required for purchasing Core Cells.

### How does progression work in Cannon Holdout?

You level up by choosing one of three parts when a build gauge fills, creating new cannon builds each run. You can also upgrade main guns and cannon parts in the Hangar, fuse parts to raise their grade, and use Transcendence to push mythic parts past their limit.

### Are there different game modes in Cannon Holdout?

Yes, Cannon Holdout offers a Boss Rush mode for a daily gauntlet of bosses, a Daily Zone with a different boss each day, daily ops, and a supply log that grows with consecutive play.

### Does Cannon Holdout have ads?

Cannon Holdout contains rewarded ads only. These ads are optional and appear when you choose to revive, double rewards, or reroll. There are no forced advertisements.

### What is the age rating for Cannon Holdout?

Cannon Holdout has an age rating of 12+. This is based on its content and suitability for players aged 12 and above.

### How often is Cannon Holdout updated?

The latest version of Cannon Holdout is 1.0.11, which was last updated on October 17, 2026. While specific update frequency isn't detailed, the game has received updates since its release.

### What devices can I play Cannon Holdout on?

Cannon Holdout is supported on iPhone and iPod devices. The game is designed for mobile play on these platforms.

## Version history (last 5 releases)

### 1.0.11 — 2026-10-17

- Frost Disc now hits enemies again on each orbit around the cannon.
- Legendary and Mythic grade bonuses are now evenly balanced across weapons.
- Fixed Frost Sprayer nova rings stacking too much at higher grades.
- Frost Disc deals much more damage.
- On Danger 2-3, elites now appear from wave 4, so the opening is less brutal.

### 1.0.8 — 2026-10-16

- Switching regions on the hub keeps your chosen danger level; regions not yet open at that level show as locked.
- The Codex, especially the Enemies tab, opens faster.
- Cell Pass (14 days): 1,000 cells right away, then 300 cells every day for 14 days. Claim from the ticket button on the left of the hub.
- The hub now tells you when a new region or danger level opens.
- Defeating the final boss clears the remaining enemies and ends the stage instantly.
- Cleaner level-up cards: grade shown by text color, only Lv4 highlighted.
- Polished the Boss Rush clear title and notification texts.
- The boss appear message now shows only its title and name; traits stay on the name plate in yellow.
- Smoother difficulty in region 3, plus Boss Rush and daily zone balance tweaks.

### 1.0.5 — 2026-10-14

- Every stage now has its own boss. 33 new bosses join the Codex.
- 23 new enemies join the regions.
- Daily zones feature a different boss each weekday.
- Bosses use aimed volleys, fan barrages, shields, teleports, burrowing, smoke and summons. Main cannon and skills can shoot down boss bullets.
- At higher danger, bosses arrive with traits like Ironclad or Regen. At danger 5 they carry two.
- Boss Rush: once a day across all regions.
- Daily zones pay more per wave in higher regions.

### 1.0.4 — 2026-10-13

- Danger difficulty retuned: danger 1 needs rare parts, 2 and 3 legendary, 4 and 5 mythic.
- Main cannon damage no longer grows each wave; its base power is higher instead.
- Named monsters are tougher.
- Gravity Field in-run upgrades adjusted.

### 1.0.3 — 2026-10-12

- Grade upgrades matter more: rare, legendary and mythic parts now get much stronger.
- Danger rebalanced: danger 1 calls for rare parts, 2-3 for legendary, 4-5 for mythic.
- Bonus shots from extra shells now trigger recipe effects for every main cannon.
- Cleaner main cannon aim: bonus shots show as small white markers, and missiles show a neat impact ladder.
- New enemies: weaving Dart Bugs and Armored Fuse Beetles that shrug off parts and charge in to explode. Hit them with your main cannon first.
- Named monsters with a golden health bar and a random trait.
- More part drops in danger runs (favoring parts you own), module Replace button, item info on the result screen.
- Buy revive coins right from the revive window.
- The pause window shows region, stage and danger.
- Mine Mortar improvements, balance tweaks and bug fixes.
- Stability: added crash reporting so we can find and fix problems faster.

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## More apps by Jeong-soo Park

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All apps by Jeong-soo Park: https://appshunter.io/developer/1248341387

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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 2026-10-24.*