A fan-made sequel to the Half Life expansion pack Opposing Force has launched on Steam.
Richard Seabrook, 25, developed Prospekt solo, which tells the story of Half Life 2 “from the perspective of the Marines”.
The expansion in set in Nova Prospekt prison as Freeman breaks and and sees Adrian Shepard teleported in by the Vortigaunt to help fight the Combine.
Shepard then finds his way to Xen, an alien world featured in the original Half Life’s final level.
Creator Seabrook, says the mod is comparable to Half Life 2: Episode One in length, with 13 levels that closely mirror the original series.
Prospekt is available on Steam now and does not require Half Life 2 to play.