In the gaming community, a "portable" version of a game usually means a modified, unofficial version designed to run from a USB flash drive or a folder without needing a full installation or the original CD/DVD/Steam client. For a game like Counter-Strike: Condition Zero (CSCZ), a "portable" repack would likely be a cracked, pre-configured copy stripped of Steam dependency.
Key Features:
The game received generally positive reviews from critics and players, praising its faithful adaptation of the Counter-Strike gameplay to portable consoles and mobile devices. However, some critics noted that the game's graphics and controls were not on par with its PC and console counterparts. Counter Strike Condition Zero Portable
Since the portable version doesn't use Steam Cloud or standard registry paths, you need to set up your config manually. What is "Counter-Strike: Condition Zero Portable"