Instagib : Source is a popular modification to Half-Life 2's Deathmatch experience. Derived from the exciting sport of Instagib seen in the Unreal series, I:S changes your HL2 experience forever by providing you with a single, instantly lethal, weapon. But that isnt all! I:S also changes player physics and adds in extreme Unreal-style aerobatic manouvers like double jumps, dodging and wall-jumping.

Instagib : Source has received widespread recognition since its release, and has been featured in Australian magazine PC Powerplay, as well as the Ukranian magazines "Domashny PK" and "Gameplay" and the Italian magazine "The Games Machine". It was also a featured mod at fileplanet.com.