ene also introduced microtransactions that allow players to use real-world funds to purchase loot crates that provide randomly-selected cosmetic items, also known as "skins", which they can trade with other players; while Greene recognizes the issue with skin gambling, he believes that Valve has put safeguards in place to support a "skin economy" that will provide further revenue for them without concerns over gambling. However, by November 2017, gray market skin gambling sites began to appear that used Battlegrounds cosmetics as virtual currency. Following controversy over the use of loot boxes to offer "pay-to-win" items in other games in November 2017, the PUBG Corporation affirmed that while they would continue to add new cosmetic items rewarded by in-game crate purchases, they would never add anything that affects or alters gameplay. In May 2018, PUBG Corporation disabled the ability to trade skins on the S
team Marketplace as they found that players were still abusing the system by selling them for monetary value through unofficial third-party platforms. While still in early access, Bluehole offered an early preview of the system by offering time-limited crates that could be purchased during the first Battlegrounds Invitations tournament during Gamescom in August 2017, with the sales from these contributing to the prize pool. Among loot from these crates were special outfits inspired by the original Battle Royale film. Greene anticipates adding a campaign mode with co-operative player support, though there would be "no serious lore" crafted for the narrative, comparing this to similar modes in Watch Dogs. The game also features custom gamemodes and modding support. He considered modding support an essential part of the full release as, just as he had his start with mods, he wants to enable others to create variations on his game so that he could "find the next PlayerUnk
nown". This was aided by a quiet release of custom server support to a number of influential streamers which subsequently made it into public release. In one case, "Zombie Mode", all but four players pretend to be zombies, who may sometimes distinguish themselves by removing all clothing and are limited only to collecting melee weapons and consumable items, and must rush to attack the other four players, who are able to collect all gear and attempt to outrun and defeat the zombies. Inspired by this mode, Greene announced plans to introduce an official zombie-based gameplay mode based on this into Battlegrounds. Whereas most of the rest of the team continued to develop the core gameplay and maps, Greene is taking on the zombie mode as a near solo project, only using the assistance of the lead animator to help with the zombie animations. Greene sees Battlegrounds as a platform, and would like to see more custom game types and mods developed by players for it. Greene ide
ntified that some mods that he also previously worked on from ARMA 3 may become part of the Battlegrounds platform. Greene also wants to incorporate the game with streaming services like Twitch that would enable replays or other features amenable to treating Battlegrounds as an esport, calling this an "ultimate end goal" for his development, but he wanted to let the nature of how it would play out naturally with player
