  The exchange of digital goods has become a significant aspect of the global
economy, with digital products offering inexpensive reproduction and
distribution. In-game objects, a type of digital currency, have emerged as
tradable commodities within gaming ecosystems. Despite extensive research on
various aspects of digital goods, little attention has been given to the impact
of in-game trading mechanisms on user experience. This paper presents a study
aimed at evaluating the influence of trading systems on user experience in a
racing game context. We developed a simple racing game featuring an in-game
market for buying and selling car variants and conducted an A/B study comparing
user experiences between groups utilizing the trading system and those
unlocking cars through race completion. Our findings suggest that while the
trading system did not significantly alter the overall user experience, further
exploration of diverse trading approaches may offer insights into their impact
on user engagement.
