Beta 1.2.3 (our latest stable release) currently has the largest player base out of all of the publicly release versions.
Download ESF v1.2.3:
The Open Beta(Beta 1.3) is the last public release of ESF. This build is a snapshot of the inteam and contains many bugs and unfinished features.
Download ESF: Open Beta Final:
The Beta 1.1 Reveresed Pack extends the old beta 1.1 so that it may be played with Steam.
Credits:
Download ESF v1.1 Reversed Pack: