4044 Old Engine

This is the last version of old engine before the new engine version update was added to Half-Life 2, this is the main version used for speedrunning old engine. (external link)

By BitRainBitRain

Ghosting Mod

Ghosting mod is mod that I have been working on that can display a past run that you did, in game. Think of playing back a demo, but instead of watching the demo in first-person, the playback applies to a model in your game. This is very effective for racing against other people, as there is an option for online, realtime racing as well! Make sure to read the README.txt in the folder for instructions on how to set up and use the mod! (external link)

By GocnakGocnak

Source Unpack

Source Unpack is the most recent pre-SteamPipe version of Source Engine (build 5135), with unpacked HL2 and Portal included. Very useful for running. (external link)

By YaLTeR & BitRain


Practice saves

Practice saves with quickclip state (external link)

By maltemllermaltemller

Save for RLD Skip

Practice it! (external link)

By MetalGioMetalGio