This is a project that i been working around more than 2 months, my intention is to try to expand the map and feel the game bigger than what it is already, many games have a sewer part and in this game i was feeling it was missing it, so i decided to make it. The first sewer systems in the United States were built in the late 1850s in Chicago and Brooklyn. In the United States, the first sewage treatment plant using chemical precipitation was built in Worcester, Massachusetts, in 1890. so according by that, its possible that sewage system can already exist in game, i took inspiration from these games to make the sewers
To install the mod put all the sewers file in lml stream
put portals files in portals ( you will need the portals mod for it)
and optional put the sewerpeds in mapeditor maps and load manually
Credits:
Andlos1999