At what point in a playthrough should I visit Cerys?

At any point works, though before Aquilo is ideal.

Some players recommend playing it earlier rather than on a lategame save.

Do I need to complete Fulgora first?

No. Fulgora tech helps only marginally on Cerys.

I'd like to play Cerys but not on an existing Space Age save.

You can use the Cerys Start mod to spawn on Cerys with power armor and enough technologies to simulate having left Nauvis.

Is Cerys a puzzle game?

Not entirely. It has puzzle elements on first playthrough, but it's a full Space Age planet mod.

How do you pronounce Cerys?

Cerys is a Welsh name pronounced "Kehr-iss”.

Why does Cerys disable Flare Stack incinerators?

When Cerys was first released, it included a port of Flare Stack to 2.0. This port included flare stacks and vent stacks, but not incinerators, as incinerators are partially redundant in Space Age due to the existence of the recycler.

We then assisted snouz to port the original Flare Stack mod to 2.0. It was decided not to remove incinerators in that port.

If you'd like to use incinerators from Flare Stack with Cerys installed, you can re-enable them in the Cerys startup settings.

Why can't I place space platform foundation around Cerys?

Although this would be fun, asteroid collisions with space platform foundation would break the gameplay. Note that some older Cerys saves behave differently in this regard.

I find the lighting on Cerys distracting, can I disable it?

Yes, you can revert to the vanilla day/night lighting using the 'Dynamic lighting' checkbox in the Cerys settings.

Is Cerys compatible with the Plutonium Energy mod?

The dev of PE explored writing a patch to merge the mods, but stated the systems in Cerys are generally preferable and that a patch would make things worse. As a result, Cerys now contains a compatibility patch that removes PE recipes from the tech tree where they would duplicate a Cerys system.

Why are there burning animations on an airless moon?

We agree it is odd you can’t build burner miners, yet you can burn fluids in a flare stack! Simply put, many Factorio animations still need adjusting for an airless environment, and we hope another mod will tackle this in future.

I used another mod that messed with Cerys, can I reset it?

You are able to delete the Cerys surface and generate it again. The mod will smoothly reset your progress when this happens.

Use the console command /c game.delete_surface('cerys').

Why don’t high-quality radiative towers have a larger visualization range when held in my cursor?

At time of writing, all known Cerys bugs are due to limitations of the underlying Factorio engine. If you’d like to see a fix for this one, you can write "+1" on this thread: https://forums.factorio.com/viewtopic.php?p=676203#p676203

How long have the Fulgorans been on Cerys?

You can deduce a lower bound for this fact from the mod.

Nice. Please tell me another neat fact.

The keybinding 'Toggle Entity' flips the polarity of charging rods.

My radiative towers didn't spawn over the lithium brine, is this intentional?

Yes.

I’m totally stumped at the start, I need a hint.

Here are two:

• As with scrap on Fulgora, you can recycle nuclear scrap by hand.
• Try removing the stick.