Mobile Game Design, a Hybrid Card & App Experience
Client
Alles oder Nichts
Year
2025
"Alles oder Nichts" is a hybrid game - part card game, part mobile app. Players draw a physical card with two estimation challenges, scan it with the app, and choose which one to play. The group then places bets using virtual money, submits their estimates under time pressure, and the app scores everyone based on accuracy. First to reach a million wins.
The game has no fixed question limit. Every category (celebrity ages, album release dates, historical facts) is powered by live APIs, which means the question pool never runs dry and every session plays differently.
Scope of Work
Game UI is a different problem from product UI. The interface has to show several things at once - the question, the timer, the current bet, the player's financial position - and stay readable in a group setting, often on someone's phone across a table.
There's an added layer: the hybrid format. The app doesn't stand alone, it responds to a physical card the player is holding. That connection had to feel like one thing, not two products that happen to work together.
The betting mechanic brought its own challenges. Players need to read their position, make a risk call, and commit, all within a single round. Too much information and the tension dies. Too little and the decisions feel random. The interface had to hold that balance.
The concept was fully designed and sold. Alles oder Nichts demonstrates a specific type of design work - game UI, real-time interaction design, and the challenge of building a digital experience that extends a physical product rather than replacing it.
