Have Gemini handle a turn-based Android game

A developer set up Gemini to operate an Android phone and finish a turn in Fire Emblem Heroes without human taps.

Done with Gemini· Intermediate· Aug 2026

What they did
They made an Android app in AI Studio so Gemini could act on the phone directly, including opening apps, tapping, swiping, and reading XML UI elements. Using that setup, Gemini 3.7 Flash examined the game state in Fire Emblem Heroes, saw it was the player’s turn, and guided the developer’s stronger characters through a battle round.
How it went
The agent completed the round. The developer said Gemini 3.6 had not managed this before, instead getting lost in menus and then stopping. They also noted that the actions were not very efficient and that even simple steps could still take a minute or two.
Tips
This kind of agent use is best for small, well-defined tasks, not polished play. Expect delays and some unreliable behavior, and avoid letting it do anything with money or other irreversible effects.

Try it yourself with Gemini

On my Android phone, open [mobile game] and use screen control to play through [one battle / one turn / one level]. Inspect the screen at each step, make reasonable tactical choices toward [goal], and avoid any paid actions or changes that can’t be undone. Before any purchase, send, delete, or submit action, stop and ask me to approve it. When the session ends, give me a short recap of the outcome and the key moves you made.

Fill in the [brackets]. Agents can make mistakes, so review anything before it is sent, paid or deleted.

Read the original on reddit.com ↗

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