Valve Software, the makers of Counter-Strike, Team Fortress 2, Portal and Left 4 Dead.
No. Half-Life: Source runs on the Source engine. The original Half-Life doesn't. You cannot use mods made for the original Half-Life on Half-Life: Source because they run on different engines and it won't work.
AnswerInstead of Half Life 3 the developers made Half-life episode 1,2,3 half-life 3.it comes out when ts finished >:( HURRY UP VALVE!
Half-life refers to nuclear isotopes. Each isotope, whether naturally ocurring or man-made, has a different half-life. You must say which element that is emitting radiationyou are asking about.
Half-Life :D
Team Fortress 2 and Half Life 2 are both games made by Valve Inc, the creators of Steam.
Kind of. The Half-Blood Prince is Snape who did some bad things in his life, but he made up for them.
A half-life is the time in which half the atoms of a certain type (isotope) disintegrate, becoming some other type of atom.
No. Half Life: Opposing Force does not require neither Half Life nor Half Life: Blue Shift.
Most gold is made up of isotopes that have never been observed to undergo radioactive decay and therefore has no known half-life. Some synthetically prepared isotopes of gold may be radioactive and thus have a half-life, the length of which would depend on the particular isotope.
The time it takes for half the atoms in a sample of a radioactive element to decay is called the half life.
yes well some of her books are real life some are not some books are even half real half made up
Valve Software made the Half-Life series. They also created many other games like Left 4 Dead and Portal.