A new gamemode where rooms are randomly generated and you have to buy ammo if you want to survive.
A new gamemode inspired by The Binding of Isaac and Boguelike mode.
Fight your way through a randomly generated maze of rooms to get to the boss. Activate a room by pressing the button in the middle. Hordes of enemies will spawn around you, so make sure you bought enough ammo from ammo crates before you start. By clearing a room you gain access to other rooms and also get rewards. You either get a new weapon or a piece of the green keycard. And of course you get paid, so you can purchase some ammo or health.
Collecting the keycard opens up the exit door but be prepared because it's always guarded by a boss. After defeating him you are free to go to the next stage, or go back and finish some leftover rooms for more weapons or XP. Finish all 3 stages in order to escape with your spaceship. Keep in mind that each wave is getting harder as you progress. Also, further away you get from start, there will be more teleport pads, meaning more enemies will try to kill you. It's challenging even on normal difficulty, so good luck!