The next Unreal engine is already public

Some of you signed up for the first version of mainradar. Here's where it went, and what's next.

Unreal Engine 6 doesn't ship until the end of 2027. But Epic already put the source on GitHub, on the ue6-main branch, 10,564 commits ahead of 5.8 and climbing. They laid out the whole road to UE6 at State of Unreal 2026 in Chicago. The new engine is out there, in the open, about 1.5 years early.

Keeping an eye on all that is the whole point of mainradar.

A while back it started as an automation I built to read ue5-main's daily commits and flag where Unreal was heading.

But it became a daily spam feed. No more fun to read than the raw commits, honestly. So I killed it.

Its old home, mainradar.be, is unavailable for now, and I'm rebuilding the whole thing from scratch here.

The new mainradar reads all three branches, 5.8, ue5-main and ue6-main, across 2,315 modules, and shows you the direction each part is moving.

When the public version goes live, you'll be the first to see it. I post more often on X, if you want to follow the day to day.

Reply here or email me at wouter@munduscreatus.be and tell me what to point the radar at. A module, a system, a question about ue6-main. Every reply helps, as it shapes what I will cover next.

WW