itch.io

Well, as I was out of place, I let the player choose. 

When I play, I throw some dice to do some grid position and place the monster, like if it's a 4x5 rooms, I roll a dice for the height, another for the width and place it there (exemple : a roll of 2 and 3, and the monster will be on the square 2x3 in this room).

Manage it the way you prefer ;)

Thanks for reading it !