Hammer Deluxe is an open source half-life 2 modification of the episode 2 engine of which has been modified especially for half-life 2 map makers in order to make much more advanced maps, puzzles and randomized events to make levels much easier to achieve.
A demonstration on some things that have been changed in Hammer Deluxe such as the recharges, npc's and some of the new entities.
wow thats awesome i cant wait to try some of this stuff out
Oh my god this looks so usefull!
This is sick! I love you!