R u sure it was not a random event?

A rather nice event raises PQ levels across several sectors, I believe. I have never seen it myself, lucky events don't seem to come my way...

All that cheat does is raise the number, not the available tiles. That being said, this sounds like a really cool bug. Do you have your debug and/or save?

All that cheat does is raise the number, not the available tiles. That being said, this sounds like a really cool bug. Do you have your debug and/or save?

Actually, there's two separate cheats. One is a universal cheat (Ctrl+Shift+P) that affects all UNINHABITABLE WORLDS. The second one will increase PQ for a single world.

And you are right about no tiles being added, but only if it is a colonized world. The cheat is useless while the worlds are colonized. But, as the Wiki says, all you have to do is destroy the colony, use the cheat, then re-establish the colony to see the change in tiles. This is a very silly thing to do to your own colony, however.

There's also a number of planets I've seen with PQ 0 that look perfectly habitable to me, which utterly confuses the crap out of me. I see a perfectly good world with water, landmasses, and what appears to be vegetation, and yet it's a PQ 0. "Double-Yew-Tee-Eff, mate?"

My last game was almost completely turned around.

Next to me, the Arceans were the most powerful, followed by the Altarians and Terrans, then the Yor, Korx, Iconians, and Torians.

Our of nowhere the Torians (who were alone in the corner surrounded by 3 systems and with only 3 colonies), got a precursor event that increased the PQ of every world within 2 sectors of their homeworld by 10. TEN!

They made a huge comeback and demanded money from me to keep the peace, I rejected, and all hell broke loose. The Altarians and Terrans, my allies, were locked in a struggle with the Arceans and the Iconians, and the Yor were pestering my trade routes.

It got pretty ugly, but we beat back the alien incursion in the end.

But I'm not complaining, made things much more interesting to have a race, seperated by such a huge gap in space, explode from the void and strike deep into the heart of worlds we thought were safe.

Epic stuff.

Very odd, I've read the answers that people have posted and I can only say that I have used no cheats or mods to get this to happen. I don't recall any galactic event that caused all class 0 planet to change to habitable.
I am playing a custom race though, with high luck!

I also know that this was not triggered by the terraforming tech.
The original post was not about this happening though - it was about the fact the class 0 planet graphics did not change until I reloaded it - it looked real odd watching a colony ship land on a gas giant and set up a colony!!

The interesting thing about this is that I still have the saves before and after the event so if somebody at stardock wants to take a look I'll upload it for them. (but please tell me how!!)

in my last game an event triggered that made all uninhabitable planets within 2 sectors of a particular system become class 7, all told about 40 new planets became useful. i didn't take advantage of it though (it was a little away from me), just sat back to watch what i thought would be a 2nd colony rush. actually turned into colony crawl, it was excruciating waiting for the ai to retool to making colony ships, and about a year until even half had been claimed (on 1.2).