Doom II: Community Chest (2003)

Community Chest (cchest.wad) is a 2003 megawad that contains 32 new levels, made by members of the Doomworld community. It requires a limit-removing source port to play. A sequel, Community Chest 2, was created a year later, followed by another sequel, Community Chest 3, in 2007. A third sequel, Community Chest 4, followed in 2012.