Apparently the whole game is being ported by the community to a newer source engine version https://github.com/NeotokyoRebuild/neo https://github.com/NeotokyoRe

Apparently the whole game is being ported by the community to a newer source engine version https://github.com/NeotokyoRebuild/neo https://github.com/NeotokyoRebuild/neo. It requires the original mod to be installed for assets but other than that it seems to be rebuilt from scratch.