Playing Half-Life and it's three expansion packs prepared me for the craze of Half-Life mods, Over ten years I've seen many mods:Good, Bad, Ugly, Funny, Crazy, Crappy, you name it. The sheer amount of mods has amazed even me.
These are what I think are the top twenty greatest mods of all time for Half-Life..Though I know some may not agree with the choices.. I went through 390 mods and decided that 20 would stand the test of time even after Half-Life's haydays end.
20:Scientist Slaughter House Mod Messup #1:WTF
19:Half-Screwed
18:Goldeneye 007
17:Half-Life:Ground Zero
16:The Alpha Unit
15:Half-Life:The Real Series
14:The Challenger Deep
13:Edge Of Darkness
12:Santa's Revenge
11:G-Man Invasion
10:Team Fortress Classic
9:Brutal Half-Life
8:The Challenger Deep 2
7:Life's End
6:Poke646
5:Azure Sheep
4:Point Of View
3:Desert Crisis
2:Sandpit
1:They Hunger
Oh! What about Sven Coop?
The top 10 Greatest multiplayer/Co-Op mods will be next, I almost forgot to include it as well.