Fest Name: Wolfstar First Date Challenge
Origin: Wolfstar Writing Challenge (Tumblr)
Links: AO3 | Rules & Prompts
Type of Challenge: Prompt challenge
Description: A Remus/Sirius fic and art challenge based around first dates. AO3 Collection is open for self-posting from May 1 to June 15.
Ratings Restrictions: All ratings allowed
Length Restrictions: None
Timeline:
Rules & Prompts are posted: April 24
AO3 Collection opens: May 1
AO3 Collection closes: June 15

Fest Name: Wolfstar Roll the Dice Challenge
Links: Tumblr | AO3 | Rules
Description: Request a prompt. Create a Remus/Sirius fic or art.
Length Restrictions: None
Timeline:
Request a prompt: May 17 - August 27
Post to AO3 Collection: June 1 - August 31

To request a prompt: Send a message or ask to Wolfstar Writing Challenges on Tumblr.

Wolfstar Writing Challenges also runs a twice-a-month prompt challenge. New prompts are posted on the 15th and 26th of every month. For more information, please see Guidelines.

Fest Name: Wolfstar Roll the Dice Challenge - Christmas Edition
Origin: Tumblr
Link: Rules & Information
Type of challenge: Prompt-based challenge
Description: A Remus/Sirius challenge where the prompts are decided by rolling the dice.
Medium: Fic, Art (moodboard, drawing, video, etc.)
Ratings restrictions: All ratings allowed
Length restrictions: None
Timeline:
First Day to Get a Prompt: November 10
AO3 Collection Opens: November 15
Final Day to Get a Prompt: December 27
AO3 Collection Closes: December 31

To request a prompt: Prompt Request Post

The following prompt challenges will be open on Tumblr on September 1.

Wolfstar Halloween Song Challenge (Remus/Sirius)

wolfstarwritingchallenge is hosting Wolfstar Halloween Song Challenge, a Halloween-themed song prompt challenge for the pairing Remus/Sirius. The challenge will run from September 1 to October 31. For the fest announcement, please see here.

Links: Rules | Prompts and Schedule | AO3 Collection

Starbuck Ship Week (James/Sirius)

prongsfoot-discord is hosting Starbuck Ship Week, a week-long prompt challenge celebrating the pairing of James and Sirius. It will run from September 1 to September 7. The fest announcement can be found here.

Links: Info & Prompt List | AO3 Collection

Bring Back the Bastard Fest (Severus Snape-centric)

bringbackthebastard is hosting Bring Back the Bastard Fest, a month-long prompt challenge celebrating the nastier side of Severus Snape. The fest will run from September 1 to September 30. For more information, please see here.

Links: Rules | Prompt List

wolfstarwritingchallenges has announced that in addition to running the monthly Wolfstar Drabble & Art Challenge (500 words maximum), it will also be running the Monthly Wolfstar Fic Challenge on Tumblr.

For the Monthly Wolfstar Fic Challenge, there is no word count limit, and there is no deadline. The only requirement is that you incorporate the prompt in some way in your Remus/Sirius fic. A new prompt will be posted on the 7th of each month.

For more information, please see here: Rules & Guidelines

To check out the first prompt, please see here: Prompt 1

You can post your work at any time to the AO3 Collection.
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If you are looking for other ongoing prompt challenge communities, please see here.

In particular, Liquid Luck Drabble & Art Challenge (HP multi-pairing; also on Tumblr) and The Ice Royals (Lucius/Narcissa) are back from hiatus this month with new prompts.

Tumblr only.

Fest Name: Wolfstar Roll the Dice Challenge 2021
Origin: wolfstarwritingchallenges
Link: Rules
Type of challenge: Prompt-based challenge
Description: Remus/Sirius only. Prompts are given to each participant by request.
Medium: Fic
Ratings restrictions: All ratings allowed
Length restrictions: Minimum word count is 250 words. No maximum.
Timeline:
Request prompt: March 1 - May 5
AO3 Collection Open: March 7 - May 7

Participants will request a prompt by leaving a message on Tumblr or through anon ask with an email address. The mod will then roll a virtual dice to determine the prompt that each participant will receive. Each prompt consists of three parts: a fanfic trope, a keyword that must be included in the fic or drabble, and an emotion. The participants will be asked to create a fic or drabble using the prompt. If you don't like the prompt you have received, you can skip up to 2 prompts during the challenge and request a new prompt.

Request for prompts will be open from March 1 to May 5.

Please post your fics to the AO3 Collection between March 7 and May 7. The mod will then post the header of your fics to wolfstarwritingchallenges.

In other news, if you are a Wolfstar fan, there is a new Wolfstar community on Discord: wickedlywolfstar. They are currently running Murder March: A Wolfstar Fest on their Wickedly Wolfstar Discord Forum. It's open to anyone. For more information, please visit their forum on Discord.