MoonJam is an 72-hour game development jam hosted by MOONMOON, where community members are challenged to create a game designed around a theme that is only revealed once it begins.

A City Under Siege

A City Under Siege 2021 1st place

Two men, alone in an abandoned city overrun by demons. The man in the tank shoots, while you gather fuel. Live as long as you can but be warned: They continue to get stronger, choose your upgrades carefully. Whenever...

Check out the previous years
2019 Inaugural Jam
2022 Winter Jam
2022 Summer Jam

Event Information

Event date
Event start time
Starts at
Theme: 1 HP
Prize Pool
Prize Pool: $40,000