It's just luck. Rock Homeworlds is a red sector and can only spawn from sector 5 onwards, so check your sector map at the sector 1 exit. You want multiple chances for it, and if not, maybe restart.

You can only have one Rock Homeworlds per game.

Renaming the crew to Ruwen does nothing now. That was patched out.

You can also make use of Long-Ranged Scanners to improve the chance of finding the beacon. It's a "plain" beacon with no distress or ship triangle.

It's just luck and I don't think renaming to ruwen work anymore.

If you don't see a lot o red sectors in the map at the end of sector 1, just start again. It will be faster...

Besides that you can get the long range scanners. Go where It show no ship presence if you ever get to the rock homeworlds.

Yeah, you just have to go at it for a long while. The Ruwen thing doesn't work anymore. It took me a solid twenty hours of grinding to get it. Also, ALWAYS RUN ROCK SHIP TO GET THE CRYSTAL CRUISER. If you wan't to 100% this game and don't use the rock ship, you'll have to do the whole secret sector ♥♥♥♥♥♥♥♥ again. If you don't know, here are the steps: Find a rock sector. Reach a distress call. If it's a strange ship in an asteroid field, explore the ship and take the lifepod. go to a zoltan sector. Find the scientists running an experiment. Ask them to examine the lifepod. You will get a crystal crewmember. Go to the rock homeworld sector. Go directly to the quest jump location. If you bring rock C, you can skip the first two steps with a crystal crew, HOWEVER, you will not have a quest marker and will need to stumble upon the portal by chance. Side note, I have confirmed this. If you use rock C, you can stumble upon the portal (only appears in rock homeworlds) and get the crystal cruiser. Once inside, BEELINE it to the quest marker for the ship. At that point, nothing else matters. This can be achieved on all difficulties, and I HIGHLY recommend you get it on easy. The bragging rights are not worth the torture of getting the crystal cruiser on hard.