v1.11 is out now on (and yes, the web demo has been updated). We’re already sketching v1.12, which may include a "Mirror Loop" mode where the track reverses every third lap. But first: go chase that perfect run.

Unlockable after 50 perfect station stops: . This isn’t just a skin. When activated, your train leaves a faint vapor trail behind. If you manage to catch up to your own vapor (a paradox waiting to happen), you trigger a "Double Draft" speed boost. It’s mind-bending, it’s meta, and it’s exactly the kind of weird we love.

For many players, this version is considered the "definitive" way to experience the game because it resolves the technical bugs found in earlier builds. The translation quality in v1.11 is a massive step up, allowing for a much better understanding of the character interactions and the "perfect ending" requirements. Community Pro-Tips

In previous versions, users reported [specific issue, e.g., jittering at the nexus point / derailment at high speeds] . Version 1.11 introduces a recalculated spline path for the track.

At its heart, Round and Round Train (RART) is rooted in the principles of rotational kinematics. The goal is to sustain a machine in indefinite motion, managing friction and energy losses that typically limit such systems in the real world.