Currently (R32 in June 2016) you can only obtain the crafting-recipe for these throwable items by registering your e-mail-address with Playful.
Once you have received the crafting recipe as a gift for registering, you will find it in your crafting menu (to be opened with "Q" as the default key) on all Creativerse worlds (even those set to "do not carry over recipes").
You cannot unlock the crafting recipe for Flares by playing nor with the help of other players; even though fellow players can give you Flares ingame that they have crafted, so you can use them in the same Creativerse world (items are not transferrable between worlds).
Throwing a flare will light up the area around the spot it hits for ca. 90 seconds with a blue pulsating shimmer, so you can inspect dark areas ahead without entering.
To make 8 Flares at once, you'll need (as of R32 in June 2016):
- 1 (block of) Glass made of Sand in a Forge
- 2 Stone Rods made of Stone, Limestone or Bedrock in a Processor or found in Stone Treasure Chests
- 1 Blue Flower found on Elderwood-trees, in Wood Treasure Chests or obtained from Chizzards of most kinds, either as a loot or harvest if they are your Pets
Before R31 a bug (that has now been fixed) has caused Flares to render usable objects invisible when hitting them directly - like doors, storage chests, crafting stations, teleporters and the like.
How to register: Edit
When you hit "play" for the first time after installing the game, a popup-window with the EULA (legal agreement) will show up that you will have to accept (click on "agree"). Next you will be asked for your birthday, to check the button with a check mark and click on "OK". The last message will ask you to verify your e-mail to get an unique recipe - which means the Flare.
If you aren't able to fill in the character @ to write your e-mail-address, then best mark it here, copy it with Strg-C and then "paste" it into the array with Strg-V.