Construct is a single/multiplayer standalone modification allowing the player to build and mold the q1 environment using build tools, pose tools, and effects native to the darkplaces engine.
theres a pretty hefty list of things you can do in construct to all geometry, monsters, even players to a degree. anyone can start a server whether or not you are behind a firewall.
Ru1337.com
Ru1337.com
^using the build tool you can get some pretty crazy designs.
Ru1337.com
round the campfire
Media.moddb.com
acrobats
^ you can pose monsters and geometry however you like and use several effects such as scale, alpha, set on fire, auras, additive transparency, positioning, frame toggle, model change, freeze toggle, spawn, and others.
Media.moddb.com
Img.photobucket.com
some of these effects even can be applied to players
Download: Ru1337.com
Moddb profile: Moddb.com
I might have a server up which will come up in the public server list.
Nice one!
Very cool :D