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Isle of Arrows – Tower Defense

by Studio Gridpop Inc

  • Games
  • Paid
  • Zombie
  • Small & simple · 100
View on the App Store
Rating
4.5
273 ratings · US storefront
Top 91%among 130 Games apps
Last update
Jul 6, 2023
Version 1.1.4
Size
126 MB
Category
Games
Tracked since
Oct 10, 2026

Estimated revenue

A model estimate with a likely range, not a reported figure.

No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.

How this estimate is made

Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.

Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.

Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.

Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.

Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.

Full method

Screenshots

As shown on the App Store listing.

About this app

Text from the App Store listing.

Isle of Arrows is a Puzzle Tower Defense game in which you build a fortress in the sky. Place towers, expand the isle, and build your own paths. Can you find the perfect spot for each tile to beat the RNG and defend against waves of invaders?

  • Tile-Placement meets Tower Defense: Isle of Arrows is a unique blend of genres that adds a new strategic puzzle element to the Tower Defense formula.
  • Roguelike structure: Each run is randomly generated with different tiles, enemies, rewards and events. Playing through campaigns unlocks more elements to appear in the game.
  • Modes & modifiers: A variety of game modes, guilds, game modifiers, and challenges make each playthrough unique.

Gameplay
Each round, you get to place a tile on the isle for free. Spending coins allows you to skip to the next tile immediately. When you're ready, call the next enemy wave and watch your placed defenses in action.

There are 50+ tiles in Isle of Arrows:
Towers attack the invaders. Roads extend the path the enemies walk on. Flags grow the isle, giving you more space to build. Gardens reward you with coins. Taverns boost all adjacent archery towers. And so on.

Features

  • 3 game Modes: Campaign, Gauntlet, Daily Defense
  • 3 themed campaigns that each have their own unique set of tiles
  • 70+ tiles
  • 75+ bonus cards
  • 10+ events that can help or hinder you

Please note that Isle of Arrows does not offer cloud save functionality for the time being.

What’s new

Release notes for the latest version, as written by the developer.

v1.1.4

NEW CONTENT

  • Miners Guild: Miners have more choices when building towers but must mine the ground of the isle in the process

GENERAL

  • Added an option for screen auto rotation to play in landscape mode
  • Reworded the ignition card to make it more clear it only transforms existing traps
  • Moved skip button for all events and made it red to avoid confusion and accidental clicks
  • Added Japanese translation

BALANCING

  • Reduced gauntlet level 1 & 5 difficulty: Max lives are now lowered by 1, instead of 2
  • Merchants' starting isle is now slightly bigger
  • The Merchant’s coin sacks now spawn adjacent to existing tiles whenever possible
  • Merchants start with 1 additional bridge
  • Buried wisdom does not appear anymore with the architects and cannoneers

BUG FIXES

  • Fixed a bug that would prevent the score display in daily mode menu from updating properly
  • Fixed an interaction between a few different relics and rewards that give resources when tiles are destroyed
  • Fixed a bug that would prevent the legacy tower from spawning and added the legacy bonus when using restart game from in-game menu
  • Fixed an issue that would click items in compendium when scrolling

Rank history

Daily position in the Japan charts. #1 is at the top.

Best rank
#27
Current rank
#27
Days charting
1 of 7

On the charts today

Small & simple score

How realistic it is for a small team to build something like this.

100/100

Small & simple

  • Developer size100% · 25

    Developer: 1 app on the charts

  • Audience size100% · 20

    Ratings: 273

  • App size100% · 10

    Size: 126 MB

  • Price model100% · 15

    Price model: paid

  • Demand proof100% · 30

    Best rank #3, 31 countries

An indicator, not a fact. We can't see team size. Calculated Oct 24, 2026 · method i2

How the score works

Version history

  • 1.1.4LatestReleased Jul 6, 2023