GuffoChallenges
GuffoChallenges are a 2-weeks-long Fancade event created by Guffo (TonoCia0n3). Originally started as a collaborative game jam, it is currently a solo game jam. In the event, a character (which can be found in an editable kit on Fancade) is given to the participants, who then have to make and submit a game involving said character model. Editions usually last 2 weeks, but they can be extended if not enough projects are completed within the deadline.
You can visit the official GuffoChallenges website to learn more about the event and to check out every past submission!
History
The GuffoChallenges (or GCs) were first hosted on the Discord server named "Guffo Garden" (now archived), where the event was called "Collab Challenges" and was a side activity in that server mostly deditcated to casual talk. That was up until the 6th edition: after that, participants were given a theme to follow instead, and they had to collaborate with other people, right upto the 8th edition, when it got its own separate server called simply "GuffoChallenges", up and running to this day, using the current event structure.
As of now, participation is under this server. Submissions are under the channel #submissions (but note one needs a role in order to participate; you can get it in #Channels and Roles).