# One Tower: Idle Tower Defense — Endless Waves, Alien Survival

> Endless Waves, Alien Survival (iPhone/iPad app by Daniel Kim.)

- Source: https://appshunter.io/ios/app/one-tower-idle-tower-defense/id6800068516 (this page in markdown: same URL + `.md`)
- Developer: [Daniel Kim](https://appshunter.io/developer/1885141208)
- Category: Games, Simulation, Strategy
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 241 MB
- Languages: American English, French (France), German (Germany), Japanese, Korean, Brazilian Portuguese, Latin American Spanish
- Released: 2026-09-21
- Data updated: 2026-10-11

## What is One Tower?

One Tower: Idle Tower Defense is an idle tower defense game with a single rule: you never build a second tower. One tower stands between the core and an endless alien invasion, and every run is a chance to upgrade it, survive longer, and turn defeat into permanent power.

Combat fires automatically. You spend the cash each wave earns on attack, defense, and utility upgrades, decide when to trigger your special weapons, and push your tower as far as it can go. When it falls, you keep the coins, return to the workshop, and come back stronger. It is incremental tower defense: short runs, big numbers, and progress that never resets.

ONE TOWER, ENDLESS WAVES
• Defend a single tower against endless waves of aliens, elites, and bosses
• Upgrade damage, attack speed, range, critical chance, health, regeneration, and more during every run
• Layer overlapping defense fields, shields, and mines around your tower
• Push through harder tiers and chase a new best wave every time

IDLE PROGRESS BETWEEN RUNS
• Invest coins in permanent Workshop upgrades that carry into every future run
• Research in the Lab keeps progressing while you are away, so the tower grows even when you are not playing
• Come back to rewards, finished research, and a stronger tower

BUILD YOUR OWN TOWER DEFENSE STRATEGY
• Collect and master Relics that reshape how your tower fights
• Deploy support Drones that amplify damage, boost allies, and burn enemies
• Forge and merge Augments for attack, defense, utility, and special power
• Unlock Special Weapons such as nukes, barrages, and overdrive, and choose the right one for each wave
• Every combination changes the run: a roguelike loop where the decisions are yours and the shooting is automatic

COMPETE AND COLLECT
• Enter tournaments and climb the standings against other tower defense players
• Complete daily missions, milestones, and limited-time events for extra rewards
• Track your best waves, total damage, and progression in your profile

WHY ONE TOWER
Most tower defense games are about placing more towers. One Tower is about going deeper with the one you have. No maps to memorize, no mazes to build: just your tower, an endless wave count, and the question of how far one tower can go. It is an idle defense game you can play in a few minutes on the bus or leave running while you work, and the workshop, research, and relics give it the depth of a full strategy game.

MADE FOR IDLE TD FANS
If you enjoy incremental games, idle games, or classic tower defense TD, One Tower gives you the best of both: the satisfying growth of an idle game and the wave-by-wave tension of tower defense. Runs are short, defeat is expected, and every defeat makes the next run better.

How long can your one tower hold?

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Crystal Pack 2 | $59.99 | one-time |
| 110 Gems | $4.99 | one-time |
| 3,300 Gems | $99.99 | one-time |
| Milestone Premium 2 | $19.99 | one-time |
| Milestone Premium 4 | $39.99 | one-time |
| Milestone Premium 5 | $49.99 | one-time |
| Remove Ads | $9.99 | one-time |
| Crystal Pack 1 | $29.99 | one-time |
| Event Boost | $11.99 | one-time |
| Milestone Premium 1 | $9.99 | one-time |


## Is One Tower safe?

Not enough ratings yet to assess One Tower.

## Is One Tower legit?

One Tower: Idle Tower Defense appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for One Tower is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 5 releases)

### 1.0.4 — 2026-10-01

Performance improvements and bug fixes.

### 1.0.3 — 2026-09-29

Performance improvements and bug fixes.

### 1.0.2 — 2026-09-24

What's new:
- New Lab research: Buy Multiplier. Buy Workshop upgrades x5, x10, x100 or Max, and hold to keep buying.
- Research: paused projects are shown and can be resumed; starting a project picks a free slot first and asks before pausing another.
- Fixed a "check your connection" loop after rapid upgrades, and Mailbox loading and "unavailable" errors.
- More reliable saves and sessions.

### 1.0.1 — 2026-09-23

Bug fixes and improvements:
- Augment reroll works again, and holding Upgrade on an Augment now keeps upgrading.
- Tournament screens no longer show "You Are Offline" when the server did answer.
- Clearer message when the app cannot verify your device.
- More reliable sessions and ads.
- The first-run tutorial no longer blocks taps on the buttons underneath it.

### 1.0 — 2026-09-21

No release notes.

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## More apps by Daniel Kim

- [Forkful: Recipe Meal Planner](https://appshunter.io/ios/app/forkful-recipe-meal-planner/id6760579706)
- [Crafti: Craft Project Planner](https://appshunter.io/ios/app/crafti-craft-project-planner/id6771215487)
- [Block Blast: Gem Puzzle](https://appshunter.io/ios/app/block-blast-gem-puzzle/id6771656026)
- [Wandering Paws: Stray Cats](https://appshunter.io/ios/app/wandering-paws-stray-cats/id6779903199)
- [Sea Gunner: Boat Blaster](https://appshunter.io/ios/app/sea-gunner-boat-blaster/id6787358807)

All apps by Daniel Kim: https://appshunter.io/developer/1885141208

## Related topics

[the tower attack](https://appshunter.io/ios/topics/the-tower-attack)

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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 2026-10-11.*