Valves first game was this first-person shooter
Here is the CodyCross answer for the clue “Valves first game was this first-person shooter”. This 9-letter answer belongs to the World of Sounds pack (Group 1351, Puzzle 5). If you are stuck on this clue from CodyCross — the themed crossword puzzle game developed by Fanatee — you will find the exact solution below along with every other clue in the same puzzle. Our database is verified by hand and updated daily against the official English version of the game.
Answer
HALF-LIFE