# Prism Defense — Draw, merge, turn the tide

> Draw, merge, turn the tide (iPhone/iPad app by Dongmin Yu.)

- Source: https://appshunter.io/ios/app/prism-defense/id6794968524 (this page in markdown: same URL + `.md`)
- Developer: [Dongmin Yu](https://appshunter.io/developer/1871033523)
- Category: Games, Casual, Strategy
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 28 MB
- Languages: American English, Korean
- Released: 2026-08-02
- Data updated: 2026-09-10
- User reviews in markdown: https://appshunter.io/ios/app/prism-defense/id6794968524/reviews.md

## What is Prism Defense?

Draw, merge, turn the tide.

Every run starts with a different board. Draw a random tower onto a random slot, then merge matching towers to make one stronger. The catch: it rerolls into a new type. The real skill is making the board you get work.

One clever merge can unlock the answer you need. One rushed merge can leave a lane open. Move towers into better coverage, sell the pieces that do not fit, or call the next wave early for extra gold when you are ready to take the risk.

Turn trouble into a target
Healers restore their pack, splitters leave two children behind, and shields block hits instead of damage. Set each tower type to FIRST, STRONG, or SPECIAL to take down the threat that matters now.

The pressure never lets up
Enemies grow stronger every wave. Every fifth wave brings a boss that rewards you with bonus gold at HP milestones, then calls escorts when its health is halved.

A fresh challenge every day
Daily Challenge gives every player the same seed. Try a new board, beat your best, and share the result when the run is over.

New to the defense?
A short first-game guide shows you how to draw, merge, move, swap, and choose your strategy. You can always check How to Play later.

5 towers, 7 tiers
- Laser — rapid beams at the front-runner.
- Cannon — slow shells with splash damage.
- Frost — chills the target and nearby enemies, slowing them.
- Sniper — reaches anywhere on the board, for heavy damage.
- Volt — lightning that chains between enemies.

Neon vector graphics, in English and Korean. Earned Prisms and cosmetic palettes are saved safely on your device.


## Version history (last 5 releases)

### 1.4.0 — 2026-09-07

Prism Defense 1.4.0
- Learn the route, DRAW, merging, tower selection, and Strategy on a dedicated practice board.
- First-time tips explain towers, special enemies, merge streaks, LV2 draws, STACK, 2x speed, and targeting.
- A combat-value arcade score now appears during runs and in results.
- Tower details show how special effects scale by tier.
- SPECIAL now targets bosses, then healers and splitters.
- In-run guidance no longer overlaps controls on short layouts.
- A palette selected before Retry now applies to the next run.

### 1.3.1 — 2026-08-31

Prism Defense 1.3.1
- Rewarded and interstitial ads now report whether they were offered, shown, and rewarded, so an ad that never appears or a reward that never arrives can be found and fixed faster.
- The privacy, advertising, and consent descriptions now match how the app actually behaves.
- Gameplay, balance, and rewards are unchanged from 1.3.0.

### 1.3.0 — 2026-08-21

Prism Defense 1.3.0
- Your first run now walks you through the core controls, from drawing and merging to strategy. Skip it whenever you like or check How to Play later.
- Tap a tower to see what it does best, plus its level, damage, and attack speed, so you can build your board with confidence.
- Share your Daily result with a Prism Defense download link and invite friends to take on today's challenge.
- The first-game guide is smoother, and you can still jump into a game if it does not load.

### 1.2.0 — 2026-08-21

Prism Defense 1.2.0
- Three new palettes to collect: Abyss, Graphite, and Obsidian.
- Six new achievements, including early ones you can reach in a first run.
- A boss reward no longer stops the run when your board is full. It waits for a free slot while you keep playing.
- Palettes are now listed cheapest first.
- Steadier sound: music stops properly in the background, and effects no longer pile up during busy waves.

### 1.1.0 — 2026-08-17

Prism Defense 1.1.0
- Three new palettes to collect: Abyss, Graphite, and Obsidian.
- Six new achievements, including early ones you can reach in a first run.
- A boss reward no longer stops the run when your board is full. It waits for a free slot while you keep playing.
- Palettes are now listed cheapest first.
- Steadier sound: music stops properly in the background, and effects no longer pile up during busy waves.

## More apps by Dongmin Yu

- [WarmWake](https://appshunter.io/ios/app/warmwake/id6758120543)
- [TODO Slayer](https://appshunter.io/ios/app/todo-slayer/id6794192291)

All apps by Dongmin Yu: https://appshunter.io/developer/1871033523

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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 2026-09-10.*