19 Games In A Retirement Countdown: Building It With AI

🔍 Read the full analysis: 19 Games In A Retirement Countdown: Building It With AI on ThorstenMeyerAI.com

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Developer Thorsten Meyer says he worked with an AI coding agent to build a free web app for people counting down the working days in a German phased-retirement plan, turning an initial film idea into a public site in five days. The app combines a daily countdown, a narrated film and 19 3D games, offering a concrete example of an AI-assisted software project in which Meyer says he set the direction and approved the releases.

Meyer’s account, published October 13 on ThorstenMeyerAI.com, says the project began on Monday, September 28, with a request for a short animated film. By Friday, October 2, the public site included a countdown based on a user’s dates and retirement model, a short film about the active and passive phases, and games that turn years of work into levels. The source describes the games in one place as 19 modes and elsewhere as 19 games; its day-by-day account says the project began with two prototypes and added four games on day two and twelve on day three.

The app is designed around Germany’s Altersteilzeit block model, in which a person works for an active phase and then has an equally long passive phase. Users enter the start date of either phase and choose a model from 1:1 to 5:5. According to Meyer, the app calculates working days by excluding weekends, public holidays for the selected German federal state and leave entered by the user.

Other listed features include a daily view with milestones, a saying of the day, calendar exports, a printable countdown and a bridge-day finder. Meyer says the project supports seven languages and five German dialects, with narrated audio and sound effects. He reports that all 24 commits were co-authored by Claude Opus 5.5, while he provided instructions, made decisions and approved releases. Those project details are reported by Meyer; the source does not include independent testing of the app or its development claims.

A Countdown Built Around Real Dates

The project illustrates one way a coding agent can be used across a small web product: not just to generate code, but to help assemble features, translations, audio and deployment work. Meyer reports roughly 18,000 lines of JavaScript and Python, 15 test scripts, and 1,224 voice clips across 12 languages. These are figures from the project author, not independently audited measures of the agent’s contribution or the finished site’s quality.

For users, the app’s practical value depends on whether its date calculations match their circumstances. Meyer says it accounts for regional public holidays and entered leave, which makes the countdown more specific than a simple calendar timer. The game design also uses the calendar itself as a map: months, weeks, working days and holidays shape how play progresses. The site is described as free, with no accounts, cookies or tracking; its calculations run in the browser.

From Film Idea to Public App

Meyer describes the starting point as a personal attempt to make the wait through an Altersteilzeit block model more engaging. In a 4:4 arrangement, for example, a person works for four years and then spends four years in the passive phase. The app’s film presents those periods as contrasting scenes, with an office setting for work and seaside imagery for time away.

The development account traces a compressed schedule rather than a conventional product launch. On the first day, Meyer says, the film, date calculations, early game prototypes and a public deployment were in place. Subsequent days added languages, the daily view, more games, badges, a bridge-day tool, narration and sound. He also reports a mobile scrolling fix and the addition of legal pages. The article describes the site’s feature set and workflow, but does not provide a separate review, user figures or a comparison with other AI-built products.

“A short animated film that counts down the working days of a German Altersteilzeit in the block model.”

— Thorsten Meyer, describing the initial request in his October 13 account

Independent Checks Are Not Provided

The available account comes from the project’s creator. It does not include an independent audit of the 24 co-authored commits, the reported code and audio totals, the date calculations or the privacy claims. The source also does not identify how the app was tested across different devices, browsers or individual holiday calendars, or report how many people have used it since launch.

There is a small discrepancy in the description of the games: the feature summary refers to 19 ways to play, while the day-by-day timeline itemizes two prototypes and later additions. The account’s overall total is 19, but it does not provide a complete game-by-game list in the supplied material. It also does not clarify how the stated seven languages and five dialects relate to the report of 12 languages for the audio production.

How Users Can Judge the App

Meyer’s account does not announce a future release date, planned feature or follow-up milestone. The app is presented as a public, free website, so the next practical step for readers interested in it is to check the live site and its legal and privacy information directly. Users relying on the countdown should verify the dates, regional holidays and leave settings against their own circumstances.

Further reporting could establish whether the site remains available, how well it works across devices and whether users find its calculations and games useful. Until such information is available, the clearest confirmed development is Meyer’s account of a five-day build and the feature set he says it produced—not an independently verified assessment of the app or of AI coding agents more broadly.

Key Questions

What is the retirement-countdown app?

It is a free web app Meyer says he built for tracking working days in a German Altersteilzeit block model. Its features include a daily countdown, a narrated film and calendar-based games.

How long did the project take?

Meyer says work began on September 28, 2026, and the public app was ready by October 2, a five-day period.

What did the AI coding agent do?

According to Meyer, the agent helped with coding, tests, translations, voice clips, sound effects, screenshots and deployment. Meyer says he supplied directions, made decisions and approved releases.

Does the app collect personal data?

Meyer says there are no accounts, cookies or tracking, and that calculations run in the browser. The source does not include an independent privacy audit, so those statements are attributed to the developer.

Are all 19 games and the app’s calculations independently verified?

No independent testing is described in the source material. Meyer reports a total of 19 games, but readers should treat the feature and accuracy claims as the developer’s account unless separate verification is published.

Source: ThorstenMeyerAI.com