Kickstarter https://www.kickstarter.com/projects/ankamaboardgames/monster-slaughter-underground
English - 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%.
Boardgamegeek https://boardgamegeek.com/boardgameexpansion/276907/monster-slaughter-underground
English - Monster Slaughter: Underground expands the original game by adding a new room to the board and new special guests for your monsters to overcome. These guests will have their own scenarios and special rules to shine in the limelight, but your Monsters will also have access to the new abilities to keep up the pace!
Ludovox https://ludovox.fr/jeu-de-societe/monster-slaughter-underground/
French - Monster Slaughter : Underground "étend" le jeu original en ajoutant une nouvelle salle au plateau et de nouveaux invités spéciaux pour vos monstres. Ces invités auront leurs propres scénarios et règles spéciales pour briller sous les feux de la rampe, mais vos monstres auront aussi accès à de nouvelles capacités pour suivre le rythme !