1. A method or process that relies on random occurrence or probability rather than predetermined rules or human decision-making
The lottery uses a chance system to select winners randomly.
A loteria usa um sistema de acaso para selecionar os vencedores aleatoriamente.
2. In gaming or mechanics, a system where outcomes are determined by randomness or probability
The video game employs a chance system for loot drops.
O videogame emprega um sistema de acaso para quedas de itens.