
Terms of use for Valve games are found in the Steam Subscriber Agreement located here: You may distribute your modified Valve game in source and object code form, but only for free. You may, free of charge, download and use the SDK to develop a modified Valve game running on the Half-Life engine.

IF YOU DO NOT AGREE TO THE TERMS OF THIS LICENSE PLEASE DON’T DOWNLOAD OR USE THE SDK. BY DOWNLOADING AND/OR USING THE SOURCE ENGINE SDK YOU ACCEPT THIS LICENSE. PLEASE READ IT BEFORE DOWNLOADING OR USING THE HALF LIFE 1 SDK (“SDK”). Impossible, however, trying to SPD an object will make you able to Stuckjump from it.THIS DOCUMENT DESCRIBES A CONTRACT BETWEEN YOU AND VALVE CORPORATION (“Valve”). Upwards can't be changed with Damage Boostingĭownwards and sideways when coupled with Damage Boosting You get stuck, but can get out by saving and reloading the save.

Impossible, but can be done by utilizing Schrodinger's Crouch Hard, only possible with Supply Crates and Barrels, as well as other few props. Very easy, possible with just about any prop and gib, capable of advanced techniques.

It's still the New Engine, so all glitches still work on it, however, it's not used in the speedrunning scene due to demo incompatibility and other technical issues that Steampipe brought.
