# UNDERTOW: The Abyss — One-thumb treasure roguelike

> One-thumb treasure roguelike (iPhone/iPad app by Jae-seong Jeong.)

- Source: https://appshunter.io/ios/app/undertow-the-abyss/id6788844615 (this page in markdown: same URL + `.md`)
- Developer: [Jae-seong Jeong](https://appshunter.io/developer/6786352623)
- Category: Games, Action, Adventure
- Price: $0.49 with in-app purchases
- Age rating: 12+
- Requires: iOS 16.0 · 2 MB
- Languages: American English, Korean
- Released: 2026-07-13
- Data updated: 2026-08-18
- User reviews in markdown: https://appshunter.io/ios/app/undertow-the-abyss/id6788844615/reviews.md

## What is UNDERTOW?

Descend one more floor, or return while you still can.

UNDERTOW is a one-thumb portrait roguelike. Tap to descend into the abyss and collect gems, then swipe up before the danger becomes too great. Only treasure carried safely back to the surface stays in your Vault.

Every descent asks for different choices.
- 24 contracts that raise both reward and risk
- 18 relics to combine during a run
- 4 regions with distinct rules
- 5 guardians you must read and counter
- An Abyss Archive that records contracts, relics, seals, and discoveries

Runs start quickly.
Descend with one hand and begin again immediately after a failed attempt. Rewards grow with every floor, but anything still in your haul is lost if you cannot return.

One purchase includes the complete game.
- No ads
- No in-app purchases
- No consumable currency
- Every visual theme and gem style included
- Playable without an internet connection

The abyss remembers how deep you went.

## Pricing and in-app purchases

Base price: $0.49.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Ember Trail | $1.99 | one-time |
| Aurora Gemset | $1.99 | one-time |
| Crimson Abyss | $1.99 | one-time |
| Abyssal Deep | $1.99 | one-time |



## Version history (last 5 releases)

### 1.2.0 — 2026-08-11

UNDERTOW has been rebuilt as a complete premium game with no ads or in-app purchases.

- 24 contracts and 18 relics
- 4 regions and 5 guardians
- The Vault and Abyss Archive
- Every visual style included

### 1.1.0 — 2026-07-25

The abyss got deeper.

- Banking your haul now lands with weight — gems count up as they drop into the Vault.
- Dodge a lunge at the last instant. The near-miss is its own reward.
- New Daily Descent: one objective a day, with a cosmetic to try when you clear it.
- New cosmetic bundles in the Abyss Store — optional, cosmetics only.
- An original ambient soundtrack that sinks deeper as you go.

One thumb. No forced ads. How deep will you go?

### 1.0.2 — 2026-07-15

Added an original ambient soundtrack that deepens as you descend.

### 1.0.1 — 2026-07-14

- Fixed the Abyss Store layout so all four cosmetics are visible.
- Updated the in-app Privacy Policy and Terms links.

### 1.0 — 2026-07-13

No release notes.

## Related topics

[abyss reader](https://appshunter.io/ios/topics/abyss-reader)

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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 2026-08-18.*