Players will reunite with old friends, and enemies, though there are also some new ones. In this mod, players will return to City 17, held within the iron grip of the Combine and the Consul. Half Life 2: Raising the Bar Redux is a standalone HL2 mod, meaning that it only requires Source SDK Base 2013. The Half-Life 2: Raising the Bar Redux Team has released a brand new version of its mod.