A MapJam is a Minecraft game-dev competition akin to a gamejam or hackathon. Mapmakers are given a short timeframe (usually 3 days) to make a map from scratch following one or more themes given at the start of the jam. The maps are then judged by players and/or moderators and ranked to determine the winners!
This jam was sponsored by the Java Realms content creator program to promote the Realms community and introduce new creators to the program. Winning teams were invited to publish their map on Realms, and Yeggs sponsored a $1000 prize pool.
The themes are Overgrowth, Resource Management, and Liminal. The winner is Synapse by The Farlanders (Bansed, MrCube6, Liminar).
The themes are Retro, Transport, and Loop. Phaic and Bastraction finally reach the number one spot with their map "Below the Loop"!
Scale, Fantasy & Dungeon are the themes this time! AUREATE SACRIFICE by Vilder and pollie takes first place, marking yet another victory for the duo.
This jam was hosted by flcme and sponsored by the Java Realms content creator program to promote the Realms community and introduce new creators to the program. Winning teams were invited to publish their map on Realms.
Vibrant, Delivery and Two Dimensions. Vrug Team finally takes the win with yet another impressive goblin-themed map!
The themes for this mapjam are: Love & War.
aNNein brings it home with Arena Wars !
The comedic map Harry Poorter secures the win, filled with unexpected surprises!
Three themes: Unexpected, Fuse and Magic. Maps must include at least 2 of the 3 themes!
Team Scripted wins the first ever "no limits" jam with "The Good Phantom", a map about running around dream worlds collecting gold and ender eyes!
GeoSD wins with "Packet Delivery Service"! Taking the theme "automation" to the next level with this amazing puzzle map where you program robots to push all packets into the holes!
Supersette and Chopper2112 win with the horror map "Ashen"! No guys, I swear we did not rig this!! The theme was "The more you have the worse it is"
This is widely regarded as one of the best mapjams even to this day, considering the quality and innovation seen in many of the submissions. This was the second and last jam hosted by Vertex before the team disbanded.
This is the first known public competition to use the "mapjam" name. Previously, "modjams" had been hosted in an unofficial capacity by developers at Mojang, but these included modding and were not exclusive to vanilla mapmaking.