Teach My Little Sister How To Drive: Free Demo Costs Indie Studio Over $1,000 a Day

Lots of players, a big bill: by its own account, four-person indie studio Easy Fox is paying more than $1,000 a day, roughly €890, to run the free Steam demo of its chaotic driving game Teach My Little Sister How To Drive. To keep the demo running, the team has even taken out a bank loan.

Contents

  1. What happened?
  2. Why the game is so expensive
  3. Gemini limits and fallback models
  4. What's next for the demo?
  5. The trailer
  6. Our take
Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)
Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)
Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)
Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)
Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)

What happened?

In a developer update on Steam from October 7, 2026, Easy Fox writes that the number of demo players grew more than twentyfold over the past month, driving operating costs way up. In the studio's own words: “We are currently spending over $1,000 per day on AI services for the demo.” At an exchange rate of about €0.89 per dollar, that's roughly €890 a day, for a demo the studio doesn't make a single cent from.

This isn’t because each player is particularly expensive to support. The total cost has increased because so many people are playing, and we have taken out a bank loan to help keep the demo running.

Easy Fox on Steam

Why the game is so expensive

In Teach My Little Sister How To Drive, you sit in the passenger seat and have to teach your little sister how to drive. The only way to intervene is with your voice. For your sister to understand your instructions and respond, everything you say is run through cloud-based AI language models in real time. So every driving lesson racks up costs with the AI providers, and in the demo, the studio foots the bill.

Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)

Gemini limits and fallback models

On top of that, there's a technical problem: according to Easy Fox, Google's Gemini, the game's main model, kept throwing errors due to usage limits during the rush. Google Cloud reportedly rejected a manual increase. As a result, the game at times ran mainly on an OpenAI model that was only meant as a stopgap. Players complained about overly long replies, unnatural dialogue and misexecuted commands, such as turning right instead of left. With Patch 1.3.0, the team has since switched to Gemini 3.5 Flash Lite, backed by a local language model that is now available in all regions.

Scene from the demo: the little sister behind the wheel
Scene from the demo (Image: Easy Fox / Steam)

What's next for the demo?

Easy Fox wants to keep offering the demo, but warns: “financial pressure may mean we have to close the demo earlier than expected before the full release.” No decision has been made yet. The game is now even part of Steam Next Fest in October 2026, and the demo is still playable (as of October 25, 2026, 4:00 PM CET). According to Steam, the full version is due for PC in January 2027. The studio plans to factor the AI costs into the purchase price. According to Easy Fox, you won't have to pay extra for your AI usage after buying the game. Local AI models are also planned for players with powerful graphics cards.

The trailer

Official trailer for the game (Video: Easy Fox / YouTube)

Our take

I think this story says a lot. A small team has a fun idea, people love it, and suddenly that very success becomes a risk. Respect to Easy Fox for being so open about the numbers and not just shutting the demo down. At the same time, the case shows how expensive games can get when they need a cloud AI for every input. I'm curious what the full version will end up costing.