| This article does not cite any sources. (March 2022) |

Wilderness Action x Biohazard is a cross-promotion collaboration between NetEase and Capcom for the mobile game Knives Out (荒野行動).
Details[]
The collaboration consisted of two twitter campaigns and limited time Resident Evil content in the game.
Campaign 1 ran from July 28, 2021, to August 12, 2021, and involved retweeting @GAME_KNIVES_OUT tweets for the chance to be one of the 10 winners of a 10,000 yen Amazon giftcard.
Campaign 2 ran from July 29 202q to August 12 and involved retweeting @GAME_KNIVES_OUT tweets for the chance to be one of the 5 winners of a iPad Air.
Game events included;
- July 29 to August 12 - Logging in will give you a chance to get free collaboration items.
- July 29 - August 1 - The "Contribute to Umbrella" menu item will be available to use for free spin of a gacha wheel spin.
- July 29 - August 1 - Sharing the campaign tweets awards 5 collaboration items
- July 29 - August 1 - New raw materials are available in the game, collecting them will increase you level for the event. Leveling up awards unique event items such as Ingredients based on herbs, and a special drug from supply boxes that has special effects during battle.
