Expansion for : Monster Slaughter
- Designers : Geoffrey Wood
- Artists : Thomas Choux
- Publishers : Ankama
Monster Slaughter: Underground was funded on the Crowdfunding Kickstarter (See the campaign) platform on the May 10, 2019, the campaign lasted 15 days. 2,793 people helped funded the game, whose the amount requested was €15,000.00. Thanks to these 2,793 people the game could be funded up to €110,608.00, ~737.39%.
