Each pass lasts for four weeks, and the rewards you earn will not be tradable or marketable.
The Sanhok Event Pass can be levelled up by completing certain missions, and it's going to include daily, weekly and map-specific missions for a steady progression.
The post adds: "If you haven't paid for the pass, you can temporarily unlock numerous items (and earn one special item permanently)".
The Event Pass drops on the next scheduled update for the game on June 22, which also introduces the new map, Sanhok.
While PUBG's rise has been swift, hitting the 400 million figure in a little over six months since its worldwide release (and over 15 months since its early access release), the game's publisher has been beset with competitors nipping at its heels.
As mentioned, the Event Pass will be exclusive to the PC version of PlayerUnknown's Battlegrounds for the time being.
Exact details about pass content, and its price, will be announced prior the Friday launch.
Players will be able to "temporarily" unlock "many" pieces of content from the pass for free, but you'll need to purchase the Event Pass to permanently unlock the full selection of new cosmetic items.
The Battle Pass feature is an increasingly popular alternative to other forms of DLC microtransactions for "Games as a Service" titles. "Only those of you who really earn them will get to show them off in-game", adds the dev. Despite its smaller scale, it still hosts 100 players, meaning matches are much quicker and more intense when contested on Sanhok.
PlayerUnknown's Battlegrounds is available now on PC, Xbox One, and mobile devices.