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Mobile Game / AndroidUp NextOct 26 // In progress

Five Seals: An Android Game Built to Make Money

Five Seals: An Android Game Built to Make Money hero image

Summary

Five Seals is an idle RPG and dungeon crawler for Android. You push through dungeons for loot and better gear, with a dark story told through bright pixel art. It is for people who love progression and idle games. It is now in progress and playable on my phone. The full game design, a roadmap of 10 versions and a step-by-step build plan are done, and an AI coding tool has worked through the build one small section at a time. Dungeons, combat, crafting, quests, mercenaries and the first two regions are in, along with a title screen, settings and sound. Still to come for version 1: Google Play sign-in, ads, purchases and the closed test.

The Challenge

I wanted to see if I could use AI to build an Android app that could actually make money. My last app, Zonal, couldn't go on the Play Store, so this time a store launch was the aim from the start. My research pointed to mobile gaming: it's a big market, AI can now build games, and the ones that earn keep people coming back every day and make their money from small in-game purchases. I also set myself a rule of no development costs beyond my AI subscription, so it uses a free game engine, free art packs and no server.

Product Rationale

Make money without annoying people

Players can buy small extras or a one-off Premium upgrade, and choose to watch ads for rewards. Forced ads are kept to a minimum, and nothing is pay-to-win.

A roadmap of 10 versions

Version 1 is a smaller but complete game, with ads and purchases in from day one. Each later version gets its own short design round before it's built.

What success looks like

Getting version 1 through Google Play's closed test and live on the store. After that, learning what players actually pay for and which ads they choose to watch, rather than guessing at figures up front.

Tech Stack

Godot 4AndroidGoogle AdMobGoogle Play BillingClaudeCursor

Key Decisions

A one-off Premium, not a subscription

A subscription needs ongoing perks, refunds and support. A single purchase that removes forced ads is simpler to run and easier to sell.

Fair play first

Nothing random is sold and you can't pay to win. That might earn less early on, but it avoids bad reviews and the extra store rules around loot boxes.

Small chunks for the AI

Each section of the build is planned first, then built in a fresh chat, so the coding AI doesn't lose track. Where the design has gaps, it asks me rather than guessing.

Visuals

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