ben oyun oynamam da çevirmem de.
ve casino değil de normal PC oyunu sanki bu?
her neyse wikinin bir video oyun terimcesi var, bence buraya bir göz atın:
https://en.wikipedia.org/wiki/Glossary_of_video_game_terms

buradan anladığım, clear = complete.
1CC
Abbreviation of "one credit clear" (alternatively "one coin clear"). The act of completing an arcade game without using more than one credit (i.e. credit-feeding), although it can also be applied to any console or PC game that uses some form of continues (the term "no continue clear" is sometime used in such instances). The term "1LC" (one life completion) or "no miss clear" are used instead when completing a game without losing a life as well (if the game has lives). This can be further extended into a "no damage clear" or "no damage completion" in games where the player-character has a health gauge. Some arcade games offer special ending sequences or challenges when the player achieves a 1CC.