The ruins of Ynyscedwyn Ironworks sit beside a loop that winds through Ystradgynlais in the United Kingdom. This 2.7 mi circuit is a test of precision across 20 corners, requiring a disciplined line to maintain speed through the town. The 82 m elevation change demands a car that can carry momentum over the rises to avoid losing time on the climbs. It plays free in the browser with no account and no install, offering a moderate technical challenge for the driver.